CN217712964U

CN217712964U - Exhaust assembly, compressor and temperature adjusting device

Info

Publication number: CN217712964U
Application number: CN202221341776.6U
Authority: CN
Inventors: 黄英伟; 赵杰; 李华明; 翟元彬
Original assignee: Guangdong Meizhi Compressor Co Ltd
Current assignee: Guangdong Meizhi Compressor Co Ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-11-01
Anticipated expiration: 2032-05-30

Abstract

The utility model discloses an exhaust subassembly, compressor and temperature regulation apparatus. This exhaust subassembly includes: the air exhaust valve comprises an air exhaust valve seat, a lift limiter and an air exhaust valve plate, wherein the air exhaust valve seat is provided with an air exhaust hole and an installation part; the lift stopper includes installation section and first spacing section, the installation section with the installation department is fixed, the first end of first spacing section with the installation section is connected, the second end of first spacing section extends the top in exhaust hole, the discharge valve piece is located the discharge valve seat with just be suitable for between the lift stopper and cover the exhaust hole, the stiff end of discharge valve piece with the installation department is fixed. According to the utility model discloses exhaust assembly, discharge valve piece have near free end department not by the spacing part of first spacing section to increase the elastic energy storage of discharge valve piece under the open mode, thereby be favorable to promoting the speed that the discharge valve piece closed the exhaust hole, avoid the discharge valve piece to postpone and close.

Description

Exhaust assembly, compressor and temperature adjusting device

Technical Field

The utility model relates to a temperature regulation apparatus technical field particularly, relates to an exhaust subassembly, compressor and temperature regulation apparatus.

Background

The existing rotary compressor has continuous air suction and intermittent air exhaust, and a lift limiter and an exhaust valve plate are arranged at an exhaust hole on a bearing, wherein the exhaust valve plate can close the exhaust hole when the compressor sucks air and open the exhaust hole when the compressor exhausts air.

The opening and closing time of the exhaust valve plate has great influence on the performance of the compressor, in order to ensure that the exhaust valve plate can be opened in time when the compressor operates at low frequency, the rigidity of the exhaust valve plate is required to be smaller so as to reduce the resistance for opening the exhaust hole, but the resilience force of the exhaust valve plate with smaller rigidity is also smaller, the speed for closing the exhaust hole by the exhaust valve plate is slower, so that the exhaust valve plate is closed in a delayed manner, and if the piston operates to the suction side at the moment, a refrigerant is sucked back into the compression cavity from the exhaust hole, so that the air delivery capacity and the energy efficiency of the compressor are reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. Therefore, the utility model provides an exhaust assembly to avoid the exhaust valve block to delay and close.

The utility model also provides a compressor of having above-mentioned exhaust subassembly.

The utility model also provides a temperature regulation apparatus who has above-mentioned compressor.

According to the utility model discloses exhaust subassembly, include: the exhaust valve seat is provided with an exhaust hole and a mounting part; the lift limiter comprises an installation section and a first limiting section, the installation section is fixed with the installation section, a first end of the first limiting section is connected with the installation section, and a second end of the first limiting section extends to the upper part of the exhaust hole; the exhaust valve plate is arranged between the exhaust valve seat and the lift limiter and is suitable for covering the exhaust hole, and the fixed end of the exhaust valve plate is fixed with the mounting part; wherein, the central axis in exhaust hole with the projected interval of installation department on first plane is L1, the second end of first spacing section with the installation department is in the projected interval is L2 on the first plane, and satisfies L1 > L2, first plane perpendicular to the central axis in exhaust hole.

According to the utility model discloses exhaust assembly, discharge valve piece have near free end department not by the spacing part of first spacing section to increase the elastic energy storage of discharge valve piece under the open mode, thereby be favorable to promoting the discharge valve piece and close the speed in exhaust hole, avoid the discharge valve piece to postpone and close.

According to the utility model discloses a some embodiments, the second end of first spacing section be equipped with be suitable for with the spacing complex chamfer of discharge valve piece.

According to some embodiments of the utility model, the lift stopper still includes the spacing section of second, the first end of the spacing section of second with the second end of first spacing section is connected, the second end of the spacing section of second stridees across the exhaust hole, first spacing section with the spacing section of second is the circular arc section, just the circular arc radius of first spacing section is greater than the circular arc radius of the spacing section of second.

According to some embodiments of the utility model, the lift stopper still includes the spacing section of second, the first end of the spacing section of second with the second end of first spacing section is connected, the second end of the spacing section of second stridees across the exhaust hole, first spacing section with the spacing section of second is the straightway, just the straight line slope of the spacing section of second is greater than the straight line slope of first spacing section.

According to the utility model discloses a some embodiments, the second end of the spacing section of second with the installation department is in projected interval is L3 on the first plane, the free end of discharge valve piece with the installation department is in projected interval is L4 on the first plane, and satisfies L3 > L4.

According to the utility model discloses a some embodiments, first spacing orientation the surface of discharge valve piece is equipped with at least one guiding gutter.

Further, the diversion trench extends in a direction perpendicular to the thickness direction of the first limiting section, and at least one end of the diversion trench extends to the edge of the first limiting section.

According to the utility model discloses a some embodiments, first spacing section and/or the spacing section orientation of second the surface of discharge valve piece is equipped with at least one guiding gutter.

According to another aspect of the present invention, a compressor comprises the above-mentioned exhaust assembly.

According to the utility model discloses compressor, its exhaust assembly's discharge valve piece has near free end department not by the spacing part of first spacing section to increase the elastic energy storage of discharge valve piece under the open mode, thereby be favorable to promoting the speed that the discharge valve piece closed the exhaust hole, avoid the discharge valve piece to postpone and close, and then be favorable to promoting the efficiency of compression.

According to the utility model discloses the temperature regulation apparatus of another aspect embodiment, including foretell exhaust subassembly.

According to the utility model discloses temperature regulation apparatus, the discharge valve piece of its compressor has near free end department not by the spacing part of first spacing section to increase the elastic energy storage of discharge valve piece under the open mode, thereby be favorable to promoting the speed that the discharge valve piece closed the exhaust hole, avoid the discharge valve piece to postpone and close, and then be favorable to promoting the efficiency of compression.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a first schematic structural diagram of an exhaust assembly when an exhaust valve plate according to an embodiment of the present invention is in a closed state;

FIG. 2 is a schematic structural diagram of an exhaust assembly according to an embodiment of the present invention when the exhaust valve sheet is in an open state;

FIG. 3 is a schematic structural diagram of a second exhaust assembly when the exhaust valve plate according to the embodiment of the present invention is in a closed state;

FIG. 4 is a schematic structural diagram of a second exhaust assembly when the exhaust valve plate according to the embodiment of the present invention is in an open state;

fig. 5 is a schematic structural diagram three of an exhaust assembly according to an embodiment of the present invention;

fig. 6 is a fourth schematic structural view of an exhaust assembly according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an exhaust assembly according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a bearing of a compressor according to an embodiment of the present invention.

Reference numerals:

the exhaust valve comprises an exhaust valve seat 1, an exhaust hole 11, an installation part 12, an installation hole 121, a connecting piece 122, a lift limiter 2, an installation section 21, a first limit section 22, a chamfer 221, a second limit section 23, a diversion trench 24, an exhaust valve plate 3, an exhaust assembly 10 and a bearing 100.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "thickness", "upper", "lower", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The exhaust assembly 10, the compressor and the thermostat according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 8.

Referring to fig. 1 and 2, an exhaust assembly 10 includes: exhaust valve seat 1, lift stopper 2 and discharge valve piece 3, exhaust valve seat 1 is equipped with exhaust hole 11 and installation department 12, exhaust hole 11 can communicate with the compression chamber of compressor, the compressed gas accessible exhaust hole 11 in the compression chamber is discharged, installation department 12 can include mounting hole 121 and connecting piece 122, connecting piece 122 can be worn to establish lift stopper 2, discharge valve piece 3 and mounting hole 121, in order to realize exhaust valve seat 1, the fixed of lift stopper 2 and discharge valve piece 3, connecting piece 122 can be the rivet.

The lift limiter 2 comprises an installation section 21 and a first limiting section 22, the installation section 21 is fixed with the installation part 12, the first end of the first limiting section 22 is connected with the installation section 21, the second end of the first limiting section 22 extends to the upper side of the exhaust hole 11, it can be understood that the upper side of the exhaust hole 11 is one side of the exhaust hole 11 in the air outlet direction, the installation section 21 can be a straight section, and is suitable for being fixed with the installation part 12, the first limiting section 22 extends in the direction away from the exhaust valve seat 1 relative to the installation section 21, in other words, the first limiting section 22 has a certain lift relative to the installation section 21, so that the exhaust valve plate 3 between the first limiting section 22 and the exhaust valve seat 1 has a certain movable stroke, and the exhaust valve plate 3 can be opened and closed to the exhaust hole 11.

The exhaust valve block 3 is arranged between the exhaust valve seat 1 and the lift limiter 2 and is suitable for covering the exhaust hole 11, the fixed end of the exhaust valve block 3 is fixed with the mounting part 12, the free end of the exhaust valve block 3 extends to the outer side of the exhaust hole 11, namely, the free end of the exhaust valve block 3 spans the exhaust hole 11, the exhaust valve block 3 has a closing state covering the exhaust hole 11 and an opening state avoiding the exhaust hole 11, when the compressor is in an air suction stage, one side, close to the lift limiter 2, of the exhaust valve block 3 is a high-pressure area, the other side of the exhaust valve block is a low-pressure area, and the exhaust valve block 3 is in the closing state covering the exhaust hole 11. When the compressor is in an exhaust stage, one side of the exhaust valve plate 3 close to the lift limiter 2 is a low-pressure area, the other side of the exhaust valve plate 3 is a high-pressure area, and the exhaust valve plate 3 moves towards the lift limiter 2 and is in an opening state avoiding the exhaust hole 11.

The distance between the central axis of the exhaust hole 11 and the projection of the mounting portion 12 on the first plane is L1, the distance between the second end of the first limiting section 22 and the projection of the mounting portion 12 on the first plane is L2, and L1 > L2 is satisfied, the first plane is perpendicular to the central axis of the exhaust hole 11, so that in the exhaust stage, the exhaust valve plate 3 is in an open state, the exhaust valve plate 3 is provided with a part which is not limited by the first limiting section 22 at a position close to the free end, and the part can be bent towards a direction far away from the exhaust hole 11 under the action of airflow to generate elastic deformation, so that the flow area at the downstream of the exhaust hole 11 can be increased, and the elastic energy storage of the exhaust valve plate 3 is realized, in the air suction stage, the exhaust valve plate 3 is switched from the open state to the closed state, the elastic energy storage of the exhaust valve plate 3 can reduce the switching time, so that the exhaust hole 11 can be quickly closed by the exhaust valve plate 3, and the reverse suction of the exhaust hole 11 is prevented.

Referring to fig. 1 and 2, since the exhaust valve plate 3 can completely cover the exhaust hole 11, a projection distance between the free end of the exhaust valve plate 3 and the mounting portion 12 on the first plane is L4, and L4 > L1 > L2 is satisfied, the surface of the lift stopper 2 facing the exhaust valve plate 3 is a limiting surface, when the exhaust valve plate 3 is in an open state, the exhaust valve plate 3 can be tightly attached to the limiting surface, and the free end of the exhaust valve plate 3 is located outside the limiting surface, in other words, the exhaust valve plate 3 has a portion which is not limited by the limiting surface at the position close to the free end, and the portion can be bent in a direction away from the exhaust hole 11 under the action of air flow to generate elastic deformation.

According to the utility model discloses exhaust assembly 10, discharge valve piece 3 has not by the spacing part of first spacing section 22 near free end department to increase discharge valve piece 3 in the elastic energy storage under the open mode, thereby be favorable to promoting discharge valve piece 3 and close the speed in exhaust hole 11, avoid discharge valve piece 3 to postpone and close.

In some embodiments of the utility model, referring to fig. 1 and 2, the second end of first spacing section 22 is equipped with and is suitable for with the spacing complex chamfer 221 of discharge valve piece 3, chamfer 221 can make the terminal surface of the second end of first spacing section 22 and first spacing section 22 towards the smooth surface transition of discharge valve piece 3, when discharge valve piece 3 is not taken place to be crooked by the spacing part of first spacing section 22, reduce discharge valve piece 3 and the stress of the second end of first spacing section 22 at contact site, thereby original stability and the reliability that does benefit to promotion discharge valve piece 3. Alternatively, the chamfer 221 may be a fillet or a bevel.

In some embodiments of the utility model, refer to fig. 3 and 4, lift stopper 2 still includes the spacing section of second 23, the first end of the spacing section of second 23 is connected with the second end of first spacing section 22, exhaust hole 11 is strideed across to the second end of the spacing section of second 23, first spacing section 22 and the spacing section of second 23 are the circular arc section, and the circular arc radius R1 of first spacing section 22 is greater than the circular arc radius R2 of the spacing section of second 23, that is, the lift of the spacing section of second 23 is greater than the lift of first spacing section 22, therefore, when exhaust hole 11 exhausts, exhaust valve block 3 is pushed up with lift stopper 2 laminating by the gas of discharging, exhaust valve block 3 is in the state of opening, the deflection of the spacing section of exhaust valve block 3 and second 23 laminating part is greater than the deflection of valve block 3 and first spacing section 22 laminating part, with the elasticity energy storage exhaust hole of exhaust valve block 3 at the state of opening, thereby exhaust hole is when 11 exhausts, exhaust hole 3 can move to the effect of elastic force to 11 directions fast, thereby be favorable to closing exhaust valve block 3, thereby be favorable to the exhaust speed of closing exhaust valve block 11, the exhaust delay valve block 3. In addition, since the second end of the second limiting section 23 spans the exhaust hole 11, the second limiting section 23 can limit the lift height of the exhaust valve plate 3, and provide reliable support and limitation for the free end of the exhaust valve plate 3 in the open state, thereby avoiding the excessive deformation of the exhaust valve plate 3 and preventing the exhaust valve plate 3 from generating plastic deformation and losing efficacy.

In some embodiments of the utility model, as shown in fig. 5, lift limiter 2 still includes the spacing section of second 23, the first end of the spacing section of second 23 is connected with the second end of first spacing section 22, exhaust hole 11 is strideed across to the second end of the spacing section of second 23, first spacing section 22 and the spacing section of second 23 are the straightway, and the straight line slope of the spacing section of second 23 is greater than the straight line slope of first spacing section 22, that is to say, the lift of the spacing section of second 23 is greater than the lift of first spacing section 22, the inclination on first spacing section 22 and exhaust valve seat 1 surface is a1, the inclination on second spacing section 23 and exhaust valve seat 1 surface is a2, and a1 < a2, therefore, when exhaust hole 11 exhausts, exhaust valve block 3 is pushed up with the gas that the lift limiter 2 laminates, exhaust valve block 3 is in the open state, exhaust valve block 3 is greater than exhaust valve block 3 and the partial deformation of first spacing section 22 laminating, thereby increase the elastic force of lift valve block 3 at the open state, thereby exhaust hole 3 can be favorable to closing exhaust hole 3 when exhaust hole 11 moves the effect of energy storage delay valve block 11, thereby exhaust hole 3 can be closed fast in the exhaust hole. In addition, since the second end of the second limiting section 23 spans the exhaust hole 11, the second limiting section 23 can limit the lift height of the exhaust valve plate 3, and reliably support and limit the free end of the exhaust valve plate 3 in the open state, thereby preventing the exhaust valve plate 3 from being deformed too much and preventing the exhaust valve plate 3 from being deformed plastically to fail.

In some embodiments of the utility model, as shown with reference to fig. 3-5, the second end of the spacing section of second 23 is L3 with installation department 12 on the first plane projected interval, the free end of exhaust valve piece 3 is L4 with installation department 12 on the first plane projected interval, and satisfy L3 > L4, therefore, when exhaust valve piece 3 is in the open mode, can make exhaust valve piece 3's free end be located the spacing section of second 23, with the stability of control exhaust valve piece 3's free end lift, avoid because the difference of the exhaust flow rate of exhaust hole 11 leads to the vibration that exhaust valve piece 3's free end produced, and avoid exhaust valve piece 3 too big at the deflection of free end department.

In some embodiments of the present invention, referring to fig. 1, 3 and 5, L1 is a connection line length between a projection point of the central axis of the exhaust hole 11 on the first plane and a projection point of the central axis of the mounting hole 121 on the first plane. L2 is a connection line length between a projection point of the second end of the first position-limiting section 22 on the first plane and a projection point of the central axis of the mounting hole 121 on the first plane, wherein the second end of the first position-limiting section 22 is an end of the first position-limiting section 22 away from the mounting portion 12. L3 is a connection line length between a projection point of the second end of the second position-limiting section 23 on the first plane and a projection point of the central axis of the mounting hole 121 on the first plane, wherein the second end of the second position-limiting section 23 is an end of the second position-limiting section 23 away from the mounting portion 12. L4 is a connection line length between a projection point of the free end of the exhaust valve plate 3 on the first plane and a projection point of the central axis of the mounting hole 121 on the first plane, wherein the free end of the exhaust valve plate 3 is an end of the exhaust valve plate 3 away from the mounting portion 12.

The utility model discloses an in some embodiments, lift stopper 2 includes installation section 21 and first spacing section 22, first spacing section 22 is equipped with at least one guiding gutter 24 towards the surface of discharge valve piece 3, it can be understood, exhaust assembly 10 can work under the fluid environment, guiding gutter 24 can reduce discharge valve piece 3 and first spacing section 22's area of contact, and reduce the viscous resistance of fluid to discharge valve piece 3 when discharge valve piece 3 separates with first spacing section 22, thereby be favorable to reducing discharge valve piece 3 and switch to the time of closed condition by the open condition, with realization discharge valve piece 3 quick-closing exhaust hole 11.

In some embodiments of the present invention, the diversion trench 24 extends in the thickness direction perpendicular to the first limiting section 22 and at least one end of the diversion trench 24 extends to the edge of the first limiting section 22, that is, the diversion trench 24 can extend in any direction on the surface of the first limiting section 22 facing the vent valve plate 3, and when the vent valve plate 3 is attached to the first limiting section 22, the oil in the diversion trench 24 is still communicated with the external oil, so that the viscous resistance of the oil to the vent valve plate 3 can be further reduced when the vent valve plate 3 is separated from the first limiting section 22, and the speed of the vent hole 11 can be rapidly closed by the vent valve plate 3.

In some embodiments of the present invention, referring to fig. 6 and 7, the lift stopper 2 includes an installation section 21, a first limit section 22 and a second limit section 23, the surface of the first limit section 22 and/or the second limit section 23 facing the vent valve plate 3 is provided with at least one diversion trench 24, that is, the diversion trench 24 can be disposed on the surface of the first limit section 22 or the second limit section 23 facing the vent valve plate 3, and the diversion trench 24 can also be disposed on the surface of the first limit section 22 and the second limit section 23 facing the vent valve plate 3, so as to reduce the viscous resistance of the oil to the vent valve plate 3. Wherein, locate first spacing section 22 guiding gutter 24 and extend in the direction of being perpendicular to first spacing section 22 thickness and at least one end of this guiding gutter 24 extends to first spacing section 22 edge, locate second spacing section 23 guiding gutter 24 and extend in the direction of being perpendicular to second spacing section 23 thickness and at least one end of this guiding gutter 24 extends to second spacing section edge.

Referring to fig. 6, the cross section of the guide groove 24 is semicircular, and referring to fig. 7, the cross section of the guide groove 24 is rectangular, and the cross section of the guide groove 24 may be elliptical or other polygonal shapes.

According to the utility model discloses a compressor of another aspect embodiment, including the exhaust subassembly 10 of above-mentioned embodiment, the compressor can be rotary compressor, and the bearing 100 of rotary compressor can be located to exhaust subassembly 10, and exhaust hole 11 communicates with the compression chamber of compressor.

According to the utility model discloses compressor, the discharge valve piece 3 of its exhaust subassembly 10 has the part that is not spacing by first spacing section 22 near free end department to increase discharge valve piece 3 in the elastic energy storage under the open mode, thereby be favorable to promoting discharge valve piece 3 and close the speed of exhaust hole 11, avoid discharge valve piece 3 to postpone and close, and then be favorable to promoting the efficiency of compression.

In some embodiments, the different discharge assembly schemes were verified on the compressor using a single factor comparison, with the results shown in table 1:

TABLE 1

Therefore, referring to table 1, compared with the compressor of the conventional exhaust assembly, the compressor using the exhaust assembly 10 shown in fig. 1-2 and the compressor using the exhaust assembly 10 shown in fig. 3-4 of the present invention have improved refrigerating capacity and energy efficiency.

In addition, in scheme two, lift stopper 2 is the two-stage structure, and lift stopper 2 includes installation section 21 and first spacing section 22, and in scheme three, lift stopper 2 is the three-stage structure, and lift stopper 2 includes installation section 21, first spacing section 22 and the spacing section 23 of second, and the spacing section 23 of second in scheme three has restricted the opening angle of exhaust valve piece 3, has reduced the through-flow area of refrigerant in comparison with scheme two, has increased exhaust resistance, leads to input power to increase, and scheme three slightly is less than scheme two to the promotion of press efficiency.

According to the utility model discloses temperature regulation apparatus of another aspect embodiment, including the compressor of above-mentioned embodiment, temperature regulation apparatus can be the air conditioner.

According to the utility model discloses temperature regulation apparatus, the discharge valve piece 3 of its compressor has the part that is not spacing by first spacing section 22 near free end department to increase discharge valve piece 3 in the elastic energy storage under the open mode, thereby be favorable to promoting discharge valve piece 3 and close the speed in exhaust hole 11, avoid discharge valve piece 3 to postpone and close, and then be favorable to promoting the efficiency of compression.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. An exhaust assembly, comprising:

the exhaust valve seat is provided with an exhaust hole and a mounting part;

the lift limiter comprises an installation section and a first limiting section, the installation section is fixed with the installation part, the first end of the first limiting section is connected with the installation section, and the second end of the first limiting section extends to the upper part of the exhaust hole;

the exhaust valve plate is arranged between the exhaust valve seat and the lift limiter and is suitable for covering the exhaust hole, and the fixed end of the exhaust valve plate is fixed with the mounting part;

wherein, the central axis in exhaust hole with the projected interval of installation department on first plane is L1, the second end of first spacing section with the installation department is in the projected interval is L2 on the first plane, and satisfies L1 > L2, first plane perpendicular to the central axis in exhaust hole.

2. The exhaust assembly as recited in claim 1 in which the second end of the first retainer segment has a chamfer adapted to engage the exhaust valve plate.

3. The exhaust assembly according to claim 1, wherein the lift limiter further comprises a second limiting segment, a first end of the second limiting segment is connected to a second end of the first limiting segment, a second end of the second limiting segment spans the exhaust hole, the first limiting segment and the second limiting segment are both arc segments, and an arc radius of the first limiting segment is greater than an arc radius of the second limiting segment.

4. The exhaust assembly as claimed in claim 1, wherein the lift limiter further comprises a second limiting segment, a first end of the second limiting segment is connected to a second end of the first limiting segment, a second end of the second limiting segment spans the exhaust hole, the first limiting segment and the second limiting segment are both straight-line segments, and a slope of a straight line of the second limiting segment is greater than a slope of a straight line of the first limiting segment.

5. The exhaust assembly according to claim 3 or 4, wherein a distance between the second end of the second limiting section and the projection of the mounting portion on the first plane is L3, a distance between the free end of the exhaust valve plate and the projection of the mounting portion on the first plane is L4, and L3 > L4 is satisfied.

6. The exhaust assembly as claimed in claim 1, wherein at least one flow guide groove is formed on a surface of the first stopper section facing the discharge valve plate.

7. The exhaust assembly as recited in claim 6 wherein the flow guide slot extends in a direction perpendicular to the thickness of the first retainer segment and at least one end of the flow guide slot extends to the edge of the first retainer segment.

8. The exhaust assembly according to claim 3 or 4, characterized in that at least one diversion trench is formed on the surface of the first limiting section and/or the second limiting section facing the exhaust valve plate.

9. A compressor, characterized by comprising a discharge assembly according to any one of claims 1 to 8.

10. A thermostat characterized by comprising a compressor according to claim 9.