CN113757081A

CN113757081A - Exhaust valve assembly, compressor and air conditioner

Info

Publication number: CN113757081A
Application number: CN202111236160.2A
Authority: CN
Inventors: 任丽萍; 何洋; 罗发游; 张骁; 万鹏凯
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2021-12-07

Abstract

The application provides a discharge valve subassembly, compressor and air conditioner. This discharge valve subassembly includes baffle (1), elastic component (2) and valve rod assembly (3), is provided with guiding hole (4) on baffle (1), and valve rod assembly (3) are including guide bar (5), and guide bar (5) can set up in guiding hole (4) with sliding, and elastic component (2) set up between valve rod assembly (3) and baffle (1) to apply the elastic force of closing gas vent (6) to valve rod assembly (3). According to the exhaust valve component, the exhaust valve can effectively avoid the influence of air flow on the exhaust valve to cause circumferential deviation in the process that the exhaust valve reciprocates along the axial direction, and the sealing performance and the reliability of the exhaust valve component are improved.

Description

Exhaust valve assembly, compressor and air conditioner

Technical Field

The application relates to the technical field of compressors, in particular to an exhaust valve assembly, a compressor and an air conditioner.

Background

Disclosed in the related art is an end seal assembly including: end seals and exhaust valves. The end seals and has seted up the mounting hole on the piece, the gas vent has been seted up to the mounting hole bottom, discharge valve includes lift stopper, discharge valve piece and elastic component, wherein the mounting hole has the internal screw thread round hole, have on the lift stopper outer peripheral face with interior screw-thread fit's external screw thread, the lift stopper passes through threaded connection with the mounting hole, the elastic component setting is at the intracavity that holds of lift stopper, the contact at the bottom of one end and the chamber that holds of lift stopper, one end and valve piece contact, promote the discharge valve piece and close.

This discharge valve piece does not set up limit structure in the circumferential direction, and has sufficient area in order to guarantee the exhaust passage, avoids the discharge valve piece to be the interval undersize between the lateral wall of week side again, and this just leads to the discharge valve piece when axial reciprocating motion, receives the influence of air current easily and takes place circumference skew, influences the leakproofness and the reliability of valve piece.

Disclosure of Invention

Therefore, the technical problem that this application will be solved lies in providing a discharge valve subassembly, compressor and air conditioner, can effectively avoid discharge valve to receive the influence of air current and take place circumference skew at discharge valve along axial reciprocating motion's in-process, improves discharge valve subassembly's leakproofness and reliability.

In order to solve the problem, the application provides a discharge valve subassembly, including baffle, elastic component and valve rod assembly, be provided with the guiding hole on the baffle, valve rod assembly includes the guide bar, and the guide bar can set up in the guiding hole with sliding, and the elastic component setting is between valve rod assembly and baffle to exert the elastic force who seals the gas vent to valve rod assembly.

Preferably, the valve stem assembly comprises a damping portion made of a damping material, the damping portion being located in a force transmission direction when the valve stem assembly slams the exhaust port.

Preferably, the damping portion includes a guide rod slidably disposed in the guide hole and a stopper flange on which the elastic member is elastically pressed.

Preferably, the side of the stop flange facing the exhaust port is provided with a valve plate, the valve plate is made of a rigid material, and the bushing comprises a guide rod.

Preferably, the damping part comprises a valve core, a bushing is sleeved outside the valve core, and the bushing is made of a rigid material.

Preferably, the valve core comprises a head part, a middle part and a tail part, and the bushing is sleeved outside the head part and the middle part and is fixed on the valve core.

Preferably, head, middle part and afterbody are cylindricly, and the diameter at middle part is less than the diameter of head, and the diameter of head is less than the diameter of afterbody, and the bush includes the step hole, and the afterbody of bush is provided with the backstop flange, and the head is installed in the macropore of step hole, and the mid-mounting is in the aperture of step hole, and the laminating of backstop flange is on the afterbody, and the bush is spacing by head and afterbody.

Preferably, a valve plate is arranged on one side of the valve core facing the exhaust port, and the valve plate is made of a rigid material.

Preferably, the valve rod assembly further comprises a stopping flange arranged at the bottom of the guide rod, the guide rod and the stopping flange are made of rigid materials, the damping materials are soft materials, the damping part is fixedly connected to the bottom of the stopping flange, a valve plate is arranged at the bottom of the damping part, and the valve plate is made of rigid materials.

Preferably, the valve stem assembly further comprises a stop flange disposed at the bottom of the guide rod, the guide rod and the stop flange are made of rigid materials, the damping material is hard, and the damping part is fixedly connected to the bottom of the stop flange.

Preferably, the bottom of the stopping flange is provided with an internal threaded hole, the damping part is provided with an external thread, and the damping part is arranged in the internal threaded hole.

Preferably, the bottom of the stopping flange is provided with a connecting rod, an external thread is arranged on the connecting rod, the damping part is provided with a threaded hole, and the damping part is arranged on the connecting rod and is in threaded connection with the connecting rod.

Preferably, the mounting groove has been seted up to the bottom of backstop flange, and the bottom of mounting groove is provided with the screw hole, and damping part includes the screw thread projection, and damping part sets up in the mounting groove, and the screw thread projection is installed in the screw hole.

Preferably, the damping part is arranged at the bottom of the stopping flange, a threaded connection hole is formed in the damping part, a counter bore is formed in the stopping flange, a screw is arranged in the counter bore, and the stopping flange and the damping part are fixedly connected through the screw.

Preferably, the damping portion is arranged at the bottom of the stopping flange, a threaded connection hole is formed in the stopping flange, a counter bore is formed in the damping portion, a screw is arranged in the counter bore, and the stopping flange and the damping portion are fixedly connected through the screw.

Preferably, the diameter of the guide hole is d, the axial length of the guide hole is L, and L/d is more than or equal to 1.

Preferably, the diameter of the guide hole is d, the length of the guide rod is L3, and d is more than or equal to L3/3.

Preferably, when the valve stem assembly closes the exhaust port, the top of the guide rod of the valve stem assembly is flush with or protrudes from the top of the baffle plate.

Preferably, the valve stem assembly has a lift of L1, 1mm < L1 < 2 mm.

Preferably, the valve rod assembly comprises a sealing surface for closing the exhaust port, the diameter of the sealing surface is d3, the diameter of the exhaust port is d4, and 1 mm-d 3-d4 are less than or equal to 2 mm.

Preferably, the discharge valve subassembly still includes the flange, is provided with the air discharge duct on the flange, and the air discharge duct bottom is provided with the gas vent, and the baffle is fixed to be set up on the flange, and the valve rod subassembly corresponds the gas vent setting.

Preferably, the gas vent is at least two, and valve rod assembly and gas vent one-to-one set up, and each valve rod assembly all sets up on the baffle.

Preferably, the baffle plate is provided with a groove, the opening of the groove faces the exhaust groove, and the valve rod assembly is arranged in the area of the groove.

According to another aspect of the present application, there is provided a compressor comprising a discharge valve assembly as described above.

According to another aspect of the present application, there is provided an air conditioner including a discharge valve assembly as described above.

The application provides a vent valve subassembly, including baffle, elastic component and valve rod assembly, be provided with the guiding hole on the baffle, valve rod assembly includes the guide bar, and the guide bar can set up in the guiding hole with sliding, and the elastic component setting is between valve rod assembly and baffle to apply the elastic force who seals the gas vent to valve rod assembly. This discharge valve subassembly adopts the guide bar structure to lead to valve rod assembly's motion, adopts the elastic component to exert the elastic force of closed gas vent to valve rod assembly, can be on the basis of guaranteeing the sealed effect of gas vent, utilize the baffle to exert the spacing effort of circumference to valve rod assembly's guide effect, when making valve rod assembly along the upper and lower direction displacement of gas vent, only can follow the displacement of upper and lower direction under the limiting displacement of baffle, can not take place the skew phenomenon, consequently can guarantee the sealed effect of valve rod assembly to the gas vent.

Drawings

FIG. 1 is a perspective view of a vent valve assembly according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a vent valve assembly in a first state according to an embodiment of the present application;

FIG. 3 is a schematic structural view of a vent valve assembly in a second state according to an embodiment of the present application;

FIG. 4 is an exploded view of a vent valve assembly according to an embodiment of the present application;

FIG. 5 is a perspective view of a flapper of a vent valve assembly in accordance with an embodiment of the present application;

FIG. 6 is a schematic view of a bushing of a vent valve assembly according to an embodiment of the present application;

FIG. 7 is a perspective view of a valve cartridge of a vent valve assembly in accordance with an embodiment of the present application;

FIG. 8 is a perspective view of a vent valve assembly according to an embodiment of the present application;

FIG. 9 is a dimensional block diagram of a vent valve assembly according to an embodiment of the present application;

FIG. 10 is a dimensional block diagram of a vent valve assembly according to an embodiment of the present application;

FIG. 11 is a schematic illustration of a valve stem assembly of a vent valve assembly in accordance with an embodiment of the present application;

FIG. 12 is a force bearing configuration schematic of a valve stem assembly of a vent valve assembly in accordance with an embodiment of the present application;

FIG. 13 is a force bearing configuration schematic of a valve stem assembly of a vent valve assembly in accordance with an embodiment of the present application;

FIG. 14 is a schematic illustration of a valve stem assembly of a vent valve assembly in accordance with an embodiment of the present application;

FIG. 15 is a schematic illustration of a valve stem assembly of a vent valve assembly in accordance with an embodiment of the present application;

FIG. 16 is a schematic illustration of a valve stem assembly of a vent valve assembly in accordance with an embodiment of the present application;

FIG. 17 is a schematic illustration of a valve stem assembly of a vent valve assembly in accordance with an embodiment of the present application;

FIG. 18 is a schematic illustration of a valve stem assembly of a vent valve assembly in accordance with an embodiment of the present application;

FIG. 19 is a schematic illustration of a valve stem assembly of a vent valve assembly in accordance with an embodiment of the present application.

The reference numerals are represented as:

1. a baffle plate; 2. an elastic member; 3. a valve stem assembly; 4. a guide hole; 5. a guide bar; 6. an exhaust port; 7. a stop flange; 8. a valve plate; 9. a bushing; 10. a valve core; 11. a damping part; 12. a connecting rod; 13. a threaded boss; 14. a screw; 15. a flange; 16. an exhaust groove; 17. a groove; 18. a valve seat.

Detailed Description

Referring to fig. 1 to 19 in combination, according to an embodiment of the present application, a discharge valve assembly includes a baffle plate 1, an elastic member 2, and a valve stem assembly 3, a guide hole 4 is formed in the baffle plate 1, the valve stem assembly 3 includes a guide rod 5, the guide rod 5 is slidably disposed in the guide hole 4, and the elastic member 2 is disposed between the valve stem assembly 3 and the baffle plate 1 and applies an elastic force for closing a discharge port 6 to the valve stem assembly 3.

This discharge valve subassembly adopts guide bar 5 to lead to valve rod assembly 3's motion, adopt elastic component 2 to apply the elastic force of closed gas vent 6 to valve rod assembly 3, can be on the basis of the sealed effect of guaranteeing gas vent 6, utilize baffle 1 to exert the spacing effort of circumference to valve rod assembly 3's guide effect, when making valve rod assembly 3 along gas vent 6 upper and lower direction displacement, only can follow upper and lower direction displacement under baffle 1's limiting displacement, the skew phenomenon can not take place, consequently, can guarantee valve rod assembly 3 to the sealed effect of gas vent 6.

Valve rod assembly 3 in this embodiment installs on baffle 1 to the direction of guiding hole 4 along baffle 1 slides, with opening or close gas vent 6, consequently valve rod assembly 3 is through baffle 1 setting of suspending, at valve rod assembly 3 with gas vent 6 complex part, need not to set up mounting structure or limit structure all around, consequently can make 6 of gas vent not shelter from all around, can exhaust to all around, no discharge pressure loss.

In one embodiment, the valve stem assembly 3 comprises a damping portion 11 made of a damping material, the damping portion 11 being located in the force transmission direction when the valve stem assembly 3 slams the exhaust port 6. By limiting the composition of the valve rod assembly 3, the valve rod assembly 3 comprises the damping part 11, and when the valve rod assembly 3 slaps the valve seat 18 at the exhaust port 6, the damping part 11 is positioned in the force transmission direction received by the valve rod assembly 3, so that the damping effect of the damping part 11 can be utilized to buffer the impact force received when the valve rod assembly 3 closes the exhaust port 6, and the vibration and noise generated when the valve rod assembly 3 closes the exhaust port 6 are reduced.

In an embodiment not shown in the figures, the damping portion 11 comprises a guide rod 5 and a stop flange 7, the guide rod 5 being slidably arranged in the guide hole 4, the elastic member 2 being elastically pressed against the stop flange 7. In the present embodiment, when the strength of the damping portion 11 is sufficient, the whole valve stem assembly 3 may be made of a damping material, so that the whole valve stem assembly 3 has damping capacity.

In one embodiment, the side of the stop flange 7 facing the exhaust opening 6 is provided with a valve plate 8, the valve plate 8 being made of a rigid material. In this embodiment, through setting up valve block 8 in the bottom of backstop flange 7 for when valve rod assembly 3 seals gas vent 6, directly slap disk seat 18 by valve block 8, consequently can utilize valve block 8 to protect the damping material, prevent that the damping material from directly receiving the impact and being slammed, improve discharge valve assembly's durability and reliability.

In one embodiment, the damping portion 11 comprises a valve core 10, a bushing 9 is sleeved outside the valve core 10, and the bushing 9 is made of a rigid material. In the present embodiment, the valve core is made of non-metal damping vibration damping material, such as rubber, PC, PA, PEEK, etc. Because the fit clearance between the nonmetal damping material and the guide hole 4 on the baffle plate 1 is difficult to control, the bush 9 is arranged outside the valve core 10 and is made of rigid materials such as metal, the processing precision is easy to control, and the clearance fit between the outer surface of the bush 9 and the guide hole 4 on the baffle plate 1 ensures that the valve rod assembly 3 runs smoothly.

In one embodiment, the valve core 10 comprises a head part, a middle part and a tail part, and the bushing 9 is sleeved outside the head part and the middle part and is fixed on the valve core 10.

In one embodiment, the head portion, the middle portion and the tail portion are cylindrical, the diameter of the middle portion is smaller than that of the head portion, the diameter of the head portion is smaller than that of the tail portion, the bushing 9 comprises a step hole, the tail portion of the bushing 9 is provided with the stop flange 7, the head portion is installed in a large hole of the step hole, the middle portion is installed in a small hole of the step hole, the stop flange 7 is attached to the tail portion, and the bushing 9 is limited by the head portion and the tail portion.

In this embodiment, the outer periphery of the bushing 9 is used to match with the guide hole 4 on the baffle 1, and the valve core 10 is arranged inside the bushing 9, wherein the large hole diameter of the bushing 9 is d2, the small hole diameter is d1, and d2 is greater than d1, so as to match with the head part, the middle part and the tail part of the valve core 10 and prevent the valve core 10 from moving inside the bushing 9.

In this embodiment, adopt the inside structure of parcel case 10 of bush 9, in order to avoid bush 9 to be rigid material, case 10 is the problem of being difficult to fix between the two that soft damping material leads to, adopt insert molding's method in this application, melt case 10 after and fix between bush 9, make the case 10 that flows can flow to the step hole of bush 9, adopt the mould to carry out regularly to the substructure of case 10 simultaneously, thereby form the valve rod assembly 3 of gomphosis, in this structure, because the both ends of case 10 are big, the centre is little, consequently, after the gomphosis with bush 9, make to form good connection fixed knot structure between case 10 and the bush 9, the structural stability and the reliability of valve rod assembly 3 have been guaranteed.

The valve core 10 is provided with a valve sheet 8 on one side facing the exhaust port 6, and the valve sheet 8 is made of rigid material.

In the present embodiment, when the valve core 10 is made of a hard damping vibration damping material such as Mn — Cu alloy, PTFE, or the like, the valve sheet 8 may not be added. When the valve core 10 is made of a damping vibration damping material with a relatively soft material, in order to prevent the valve core 10 from being broken, the valve sheet 8 with rigidity needs to be added at the bottom of the valve core 10 to protect the valve core 10.

In one embodiment, the valve stem assembly 3 further includes a stop flange 7 disposed at the bottom of the guide rod 5, the guide rod 5 and the stop flange 7 are made of a rigid material, the damping material is a soft material, the damping portion 11 is fixedly connected to the bottom of the stop flange 7, the valve sheet 8 is disposed at the bottom of the damping portion 11, and the valve sheet 8 is made of a rigid material. In one embodiment, the valve stem assembly 3 further comprises a stop flange 7 disposed at the bottom of the guide rod 5, the guide rod 5 and the stop flange 7 are made of a rigid material, the damping material is a hard material, and the damping part 11 is fixedly connected to the bottom of the stop flange 7. In the present embodiment, the guide rod 5 is made of a rigid material such as a metal material, and the damping portion 11 made of a hard damping material is fixed to the bottom of the stopper flange 7, so as to directly bear the slapping action of the valve seat 18, and at the same time, to play an effective vibration damping role, so as to reduce the noise generated when the valve stem assembly 3 closes the exhaust port 6.

The hardness range of the soft damping material is HRC less than or equal to 50, and the hardness range of the hard damping material is HRC more than 50.

In one embodiment, the bottom of the stop flange 7 is provided with an internal threaded hole, the damping portion 11 is provided with an external thread, and the damping portion 11 is installed in the internal threaded hole, so that the threaded fixed connection with the stop flange 7 is realized.

In one embodiment, the bottom of the stop flange 7 is provided with a connecting rod 12, the connecting rod 12 is provided with an external thread, the damping part 11 is provided with a threaded hole, and the damping part 11 is arranged on the connecting rod 12 and is in threaded connection with the connecting rod 12. In the present embodiment, the connecting rod 12 extends out of the damper 11 and is disposed corresponding to the exhaust port 6, and an annular protrusion is disposed on the peripheral side of the exhaust port 6, so that when the valve stem assembly 3 falls, the valve stem assembly is pressed against the annular protrusion through the damper 11, thereby effectively closing the exhaust port 6.

In one embodiment, the bottom of the stop flange 7 is provided with a mounting groove, the bottom of the mounting groove is provided with a threaded hole, the damping part 11 comprises a threaded boss 13, the damping part 11 is arranged in the mounting groove, and the threaded boss 13 is mounted in the threaded hole.

In one embodiment, the damping portion 11 is disposed at the bottom of the stop flange 7, a threaded connection hole is disposed on the damping portion 11, a countersunk hole is disposed in the stop flange 7, a screw 14 is disposed in the countersunk hole, and the stop flange 7 and the damping portion 11 are fixedly connected through the screw 14.

In one embodiment, the damping portion 11 is disposed at the bottom of the stop flange 7, the stop flange 7 is provided with a threaded connection hole, the damping portion 11 is provided with a countersunk hole, a screw 14 is disposed in the countersunk hole, and the stop flange 7 and the damping portion 11 are fixedly connected through the screw 14.

In one embodiment, the diameter of the pilot hole 4 is d, the axial length of the pilot hole 4 is L, and L/d is more than or equal to 1. In this embodiment, since the valve rod assembly 3 slides in the guide hole 4 through the guide rod 5, in order to prevent the length-diameter ratio of the guide hole 4 from being too small, the guiding effect is poor, and the effective guiding and limiting effect cannot be achieved, the ratio of the length to the diameter of the guide hole 4 needs to be limited to the above range.

In one embodiment, the diameter of the guide hole 4 is d, the length of the guide rod 5 is L3, and d is larger than or equal to L3/3, so that the guide hole 4 has enough diameter to bear larger overturning acting force, and the overturning problem of the valve rod assembly 3 is effectively prevented.

In one embodiment, when the valve rod assembly 3 closes the exhaust port 6, the top of the guide rod 5 of the valve rod assembly 3 is flush with the top of the baffle plate 1 or protrudes from the top of the baffle plate 1. In the embodiment, when the valve rod assembly 3 closes the exhaust port 6, the top of the guide rod 5 of the valve rod assembly 3 is at least flush with the baffle plate 1, or the height of the protruding baffle plate 1 is L2, and L2 is more than or equal to 0, so that the baffle plate 1 has good guidance for the valve rod assembly 3.

In one embodiment, the lift range of the valve rod assembly 3 is L1, and L1 is more than 1mm and less than 2mm, so that the valve rod assembly 3 can have a proper lift range, the phenomenon that the valve rod assembly 3 is closed in a delayed mode due to the fact that the lift range is too large is avoided, the valve plate 8 slaps the valve seat 18 with too large acting force to generate larger noise and vibration, the phenomenon that the valve plate 8 generates too small air to cause air exhaust over-compression can also be avoided, air exhaust resistance is large, and the working efficiency of the air exhaust valve assembly is improved.

In one embodiment, the valve rod assembly 3 comprises a sealing surface for closing the exhaust port 6, the diameter of the sealing surface is d3, the diameter of the exhaust port 6 is d4, and 1mm or more and d3-d4 or more and 2mm can avoid the problem that the difference between the diameters of the sealing surface of the valve rod assembly 3 and the exhaust port 6 is too small to cause poor sealing, and simultaneously avoid the problem that the difference between the diameters is too large to cause too large back pressure to cause the increase of the flapping force of the valve rod assembly 3 to flap the valve seat 18.

In this embodiment, the elastic member 2 is a spring, and the outer diameter of the spring is smaller than the outer diameter of the stop flange 7 of the stem assembly 3, so that the effective cooperation between the spring and the stop flange 7 can be ensured, and the imbalance of the elastic force applied to the stop flange 7 due to the overlarge diameter of the spring can be avoided.

In one embodiment, the exhaust valve assembly further comprises a flange 15, an exhaust groove 16 is formed in the flange 15, a valve seat 18 is arranged at the bottom of the exhaust groove 16, an exhaust port 6 is formed in the valve seat 18, the baffle plate 1 is fixedly arranged on the flange 15, and the valve rod assembly 3 is arranged corresponding to the exhaust port 6. In the present embodiment, the baffle plate 1 is used for limiting the upward displacement of the valve rod assembly 3, and the valve seat 18 is used for limiting the downward displacement of the valve rod assembly, so that the valve rod assembly 3 can move in the limiting space between the baffle plate 1 and the valve seat 18.

In one embodiment, the number of the exhaust ports 6 is at least two, the valve rod assemblies 3 and the exhaust ports 6 are arranged in a one-to-one correspondence, and each valve rod assembly 3 is arranged on the baffle plate 1. In the present embodiment, one integrated exhaust port 6 is divided into a plurality of small exhaust ports for exhaust, so that the mass of a single valve stem assembly 3 can be effectively reduced, thereby reducing vibration and noise generated when the valve stem assembly 3 slaps against the valve seat 18. Simultaneously, set up a plurality of valve rod assembly 3 in a baffle 1, also can reduce the assembly degree of difficulty, greatly reduce the assemble duration, improve assembly efficiency, improve the structural uniformity.

In one embodiment, the baffle 1 is provided with a groove 17, the opening of the groove 17 faces the exhaust slot 16, and the valve rod assembly 3 is arranged in the area of the groove 17. In this embodiment, in the space defined by the baffle plate 1 and the valve seat 18, the movable space of the elastic member 2 and the valve rod assembly 3 needs to be provided, so that the baffle plate 1 and the valve seat 18 need to have enough height to meet the movement requirement of the valve rod assembly 3 and the setting requirement of the elastic member 2, and by forming the groove 17 on the baffle plate 1, the movable space between the baffle plate 1 and the valve seat 18 is enlarged, which is equivalent to the situation that the height of the baffle plate 1 is not increased, so that the whole structure of the exhaust valve assembly is more compact, and the movement and installation requirements of the valve rod assembly 3 can be better met.

In one embodiment, the baffle 1 is secured to the flange 15 by screws 14. In this embodiment, mounting holes are provided at both ends of the baffle plate 1, threaded holes are provided at corresponding positions on the exhaust groove 16 of the flange 15, and screws are installed in the threaded holes through the mounting holes to fix the baffle plate 1 on the flange 15. The flapper 1 in this embodiment includes connecting arms at both ends for securing the flapper 1 to the flange 15 and a mounting area in the middle for mounting the valve stem assembly 3. In this embodiment, form bending structure between linking arm and the installing zone, that is, the linking arm is buckled towards the edge of exhaust duct 16, the installing zone is located directly over the gas vent 6 of exhaust duct 16 bottom, this kind of structure can utilize bending structure between linking arm and the installing zone, make the flange structure of installation linking arm avoid the exhaust route of gas vent 6, can utilize the bending of linking arm to make the position of installing zone can form good cooperation with gas vent 6 simultaneously, thereby can guarantee that flange 15 is used for the structure of installing baffle 1 can not stop the exhaust formation of gas vent 6 department, make the exhaust have bigger flow area, and the exhaust efficiency is improved.

When the exhaust valve assembly is in an unvented state, the valve rod assembly 3 is only pressed on the exhaust port 6 on the flange 15 under the action of spring force and back pressure; when the exhaust valve assembly is in an exhaust state, the high-pressure gas overcomes the spring force and the back pressure acting force to jack the valve rod assembly 3 to start exhaust. After the exhaust is finished, the valve rod component 3 contacts the valve seat 18 under the action of the spring pressure and the back pressure to close the exhaust port 6.

According to an embodiment of the present application, the compressor comprises a discharge valve assembly, which is the discharge valve assembly described above.

According to an embodiment of the present application, an air conditioner includes a discharge valve assembly, which is the discharge valve assembly described above.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims

1. The exhaust valve assembly is characterized by comprising a baffle plate (1), an elastic piece (2) and a valve rod assembly (3), wherein a guide hole (4) is formed in the baffle plate (1), the valve rod assembly (3) comprises a guide rod (5), the guide rod (5) can be slidably arranged in the guide hole (4), the elastic piece (2) is arranged between the valve rod assembly (3) and the baffle plate (1), and the elastic piece (3) applies elastic force for closing an exhaust port (6).

2. A vent valve assembly according to claim 1, wherein the valve stem assembly (3) comprises a damping portion (11) made of a damping material, the damping portion (11) being located in a force transmission direction when the valve stem assembly (3) slams the vent port (6).

3. An exhaust valve assembly according to claim 2, characterized in that said damping portion (11) comprises said guide rod (5) and a stop flange (7), said guide rod (5) being slidably arranged within said guide hole (4), said elastic member (2) being elastically pressed against said stop flange (7).

4. A vent valve assembly according to claim 3, wherein the stop flange (7) is provided with a valve plate (8) on the side facing the vent (6), the valve plate (8) being made of a rigid material.

5. A vent valve assembly according to claim 2, wherein the damping portion (11) comprises a spool (10), a bushing (9) being sleeved around the spool (10), the bushing (9) being made of a rigid material.

6. The vent valve assembly of claim 5, wherein the spool (10) includes a head portion, a middle portion and a tail portion, and the bushing (9) is fitted over the head portion and the middle portion and fixed to the spool (10).

7. The discharge valve assembly according to claim 6, wherein said head portion, said middle portion and said tail portion are each cylindrical, a diameter of said middle portion is smaller than a diameter of said head portion, a diameter of said head portion is smaller than a diameter of said tail portion, said bushing (9) includes a stepped hole, a stopper flange (7) is provided at said tail portion of said bushing (9), said head portion is installed in a large hole of said stepped hole, said middle portion is installed in a small hole of said stepped hole, said stopper flange (7) is attached to said tail portion, and said bushing (9) is retained by said head portion and said tail portion.

8. An exhaust valve assembly according to any of claims 5-7, characterized in that the valve element (8) is arranged on the side of the valve element (10) facing the exhaust port (6), the valve element (8) being made of a rigid material.

9. The exhaust valve assembly according to claim 2, wherein the valve rod assembly (3) further comprises a stop flange (7) arranged at the bottom of the guide rod (5), the guide rod (5) and the stop flange (7) are made of rigid materials, the damping material is soft, the damping part (11) is fixedly connected to the bottom of the stop flange (7), a valve plate (8) is arranged at the bottom of the damping part (11), and the valve plate (8) is made of rigid materials.

10. The exhaust valve assembly according to claim 2, wherein the valve stem assembly (3) further comprises a stop flange (7) disposed at the bottom of the guide rod (5), the guide rod (5) and the stop flange (7) are made of a rigid material, the damping material is a hard material, and the damping portion (11) is fixedly connected to the bottom of the stop flange (7).

11. The vent valve assembly of claim 10, wherein the bottom of the stop flange (7) defines an internally threaded bore, and wherein the damper (11) has an external thread, the damper (11) being mounted within the internally threaded bore.

12. The exhaust valve assembly according to claim 10, characterized in that the bottom of the stop flange (7) is provided with a connecting rod (12), the connecting rod (12) is provided with an external thread, the damping portion (11) has a threaded hole, and the damping portion (11) is provided on the connecting rod (12) and is in threaded connection with the connecting rod (12).

13. The exhaust valve assembly according to claim 10, wherein the bottom of the stop flange (7) is provided with a mounting groove, the bottom of the mounting groove is provided with a threaded hole, the damping portion (11) comprises a threaded boss (13), the damping portion (11) is disposed in the mounting groove, and the threaded boss (13) is mounted in the threaded hole.

14. The exhaust valve assembly according to claim 10, characterized in that the damping portion (11) is arranged at the bottom of the stop flange (7), a threaded connection hole is arranged on the damping portion (11), a countersunk hole is arranged in the stop flange (7), a screw (14) is arranged in the countersunk hole, and the stop flange (7) and the damping portion (11) are fixedly connected through the screw (14).

15. The exhaust valve assembly according to claim 10, characterized in that the damping portion (11) is arranged at the bottom of the stop flange (7), a threaded connection hole is arranged on the stop flange (7), a countersunk hole is arranged on the damping portion (11), a screw (14) is arranged in the countersunk hole, and the stop flange (7) and the damping portion (11) are fixedly connected through the screw (14).

16. The discharge valve assembly according to claim 1, characterized in that the diameter of the pilot hole (4) is d, the axial length of the pilot hole (4) is L, L/d ≧ 1.

17. The discharge valve assembly according to claim 1, wherein the diameter of the guide hole (4) is d, and the length of the guide rod (5) is L3, d ≧ L3/3.

18. The discharge valve assembly according to claim 1, wherein the top of the guide rod (5) of the valve rod assembly (3) is flush with the top of the baffle plate (1) or protrudes from the top of the baffle plate (1) when the valve rod assembly (3) closes the discharge port (6).

19. An exhaust valve assembly according to claim 1, characterized in that the valve stem assembly (3) has a lift of L1, 1mm < L1 < 2 mm.

20. The exhaust valve assembly according to claim 1, characterized in that the valve stem assembly (3) comprises a sealing surface closing the exhaust port (6), the sealing surface having a diameter d3, the exhaust port (6) having a diameter d4, 1mm ≦ d3-d4 ≦ 2 mm.

21. A vent valve assembly according to any one of claims 1 to 7 and 9 to 20, further comprising a flange (15), wherein a vent groove (16) is formed on the flange (15), the vent port (6) is formed at the bottom of the vent groove (16), the baffle plate (1) is fixedly arranged on the flange (15), and the valve rod assembly (3) is arranged corresponding to the vent port (6).

22. The discharge valve assembly according to claim 21, wherein said discharge ports (6) are at least two, said valve stem assemblies (3) and said discharge ports (6) are disposed in one-to-one correspondence, and each of said valve stem assemblies (3) is disposed on said baffle plate (1).

23. A vent valve assembly according to claim 21, wherein the flapper (1) is provided with a groove (17), the groove (17) opening towards the vent slot (16), and the valve stem assembly (3) is provided in the region of the groove (17).

24. A compressor comprising a discharge valve assembly according to any one of claims 1 to 23.

25. An air conditioner including a discharge valve assembly as claimed in any one of claims 1 to 23.