Exhaust valve components, compressors and air conditioners

Abstract

The present application provides an exhaust valve assembly, a compressor and an air conditioner. The exhaust valve assembly comprises a flange (1) and an exhaust valve group, wherein a valve seat (2) is arranged on the flange (1), an exhaust port (3) is arranged on the valve seat (2), and the exhaust valve group comprises a mounting seat (4), an elastic member (5) and a valve plate (6), wherein the mounting seat (4) is mounted on the flange (1), the valve plate (6) is located between the exhaust port (3) and the elastic member (5), one end of the elastic member (5) abuts against the valve plate (6), and the other end abuts against the mounting seat (4), and at least two protrusions (7) are arranged at intervals along the circumference of the mounting seat (4), and the valve plate (6) moves in a guide space formed by the protrusions (7). According to the exhaust valve assembly of the present application, the area of ​​the airflow flow channel can be increased, the fluid resistance can be reduced, the exhaust loss can be reduced, and the compressor performance can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of compressors, and in particular to an exhaust valve assembly, a compressor and an air conditioner. Background Art

[0002] The related art discloses an end seal assembly, which includes an end seal and an exhaust valve. The end seal is provided with a mounting hole, and an exhaust port is provided at the bottom of the mounting hole. The exhaust valve includes a lift limiter, an exhaust valve plate and an elastic member, wherein the mounting hole is a circular hole with an internal thread, and the outer peripheral surface of the lift limiter has an external thread matching the internal thread, the lift limiter is connected to the mounting hole through a thread, and the elastic member is arranged in the accommodating cavity of the lift limiter, one end of which contacts the bottom of the accommodating cavity of the lift limiter, and the other end contacts the valve plate, so as to push the exhaust valve plate to close.

[0003] However, in this end seal assembly, in order to ensure the threaded assembly effect between the lift limiter and the mounting hole, the mating area of ​​the threaded wall must be large enough. Since the blocking area of ​​the threaded wall is large, the air flow channel only has a side through hole, and the side through hole area is limited and the flow area is small, resulting in large exhaust losses and reduced compressor performance. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present application is to provide an exhaust valve assembly, a compressor and an air conditioner, which can increase the area of ​​the air flow channel, reduce fluid resistance, reduce exhaust loss and improve compressor performance.

[0005] In order to solve the above problems, the present application provides an exhaust valve assembly, including a flange and an exhaust valve group, a valve seat is arranged on the flange, an exhaust port is arranged on the valve seat, the exhaust valve group includes a mounting seat, an elastic member and a valve plate, the mounting seat is installed on the flange, the valve plate is located between the exhaust port and the elastic member, one end of the elastic member abuts on the valve plate, and the other end abuts on the mounting seat, and at least two protrusions are arranged at one end of the mounting seat facing the exhaust port, and the at least two protrusions are arranged at intervals along the circumference of the mounting seat, and the valve plate moves in a guide space formed by the protrusions.

[0006] Preferably, one end of the mounting seat away from the exhaust port is connected to a mounting plate, a mounting groove is provided on the flange, the mounting plate is installed in the mounting groove, and the mounting seat is fixed on the mounting plate.

[0007] Preferably, a screw hole is provided at the bottom of the mounting groove, and a mounting hole is provided on the mounting plate. The screws are installed in the screw holes through the mounting holes, and the mounting plate is fixed in the mounting groove.

[0008] Preferably, the mounting plate and the mounting seat are integrally formed.

[0009] Preferably, the width of the mounting groove is B, the width of the mounting plate is b, the diameter of the valve plate is D2, the diameter of the exhaust port is D1, and (Bb) / 2-(D2-D1) / 2≥0.5mm.

[0010] Preferably, the mounting seat comprises a sleeve with one end closed, the protrusion is arranged on the end surface of the open end of the sleeve, and the elastic member abuts against the cover of the sleeve.

[0011] Preferably, the protrusion and the sleeve form a stop step at the connection position for stopping the movement position of the valve plate.

[0012] Preferably, in the cross section of the sleeve, the inner circumferential surfaces of the protrusions are located on the same circle, and the valve plate is located within the circle surrounded by the protrusions.

[0013] Preferably, the inner diameter of the sleeve is d, the inner diameter of the protrusion is D, and D>d.

[0014] Preferably, the axial height of the protrusion is H, the diameter of the exhaust port is D1, and D1≥H≥D1 / 4.

[0015] Preferably, a vibration-damping groove and / or a chamfer is provided on the protrusion.

[0016] Preferably, the vibration-damping groove and / or the chamfer are arranged on the outer peripheral wall of the protrusion.

[0017] Preferably, the vibration-damping groove extends along the circumference or axial direction of the protrusion.

[0018] According to another aspect of the present application, a compressor is provided, comprising an exhaust valve assembly, wherein the exhaust valve assembly is the above-mentioned exhaust valve assembly.

[0019] According to another aspect of the present application, an air conditioner is provided, comprising an exhaust valve assembly, which is the above-mentioned exhaust valve assembly.

[0020] The exhaust valve assembly provided by the present application comprises a flange and an exhaust valve group, a valve seat is arranged on the flange, an exhaust port is arranged on the valve seat, the exhaust valve group comprises a mounting seat, an elastic member and a valve plate, the mounting seat is mounted on the flange, the valve plate is located between the exhaust port and the elastic member, one end of the elastic member abuts on the valve plate, and the other end abuts on the mounting seat, and at least two protrusions are arranged at one end of the mounting seat facing the exhaust port, and at least two protrusions are arranged at intervals along the circumference of the mounting seat, and the valve plate moves in the guide space formed by the protrusions. The exhaust valve assembly is provided with a protrusion at one end of the mounting seat near the exhaust port, on the one hand, the protrusion can be used to limit the valve plate, so that the valve plate will not be affected by the airflow and cause deviation when performing reciprocating motion, and the valve plate has high stability and good sealing performance, and on the other hand, because the protrusion is only used to limit the valve plate, the blocking area is small, and the airflow is less obstructed in the circumferential airway after the valve plate is opened, so that the airflow flow channel can have a larger flow area, the fluid resistance is small, the exhaust loss is small, and the compressor performance can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the exploded structure of an exhaust valve assembly according to one embodiment of the present application;

[0022] Figure 2 This is a schematic cross-sectional view of an exhaust valve assembly according to an embodiment of the present application;

[0023] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at P;

[0024] Figure 4 This is a schematic diagram of the valve plate structure of an exhaust valve assembly according to an embodiment of the present application;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of a flange of an exhaust valve assembly according to an embodiment of the present application;

[0026] Figure 6 This is a schematic structural diagram of a flange of an exhaust valve assembly according to an embodiment of the present application;

[0027] Figure 7 This is a schematic cross-sectional structural diagram of a flange of an exhaust valve assembly according to an embodiment of the present application;

[0028] Figure 8 A schematic diagram of the three-dimensional structure of a mounting base of an exhaust valve assembly according to an embodiment of the present application;

[0029] Fig. 9 This is a schematic structural diagram of a mounting base of an exhaust valve assembly according to an embodiment of the present application;

[0030] Fig.10This is a schematic structural diagram of a mounting base of an exhaust valve assembly according to an embodiment of the present application;

[0031] Fig.11 A schematic diagram of the structure of a vibration-damping groove of an exhaust valve assembly according to an embodiment of the present application;

[0032] Fig.12 A schematic diagram of the structure of a vibration-damping groove of an exhaust valve assembly according to an embodiment of the present application;

[0033] Fig.13 A schematic structural diagram of a vibration-damping groove of an exhaust valve assembly according to an embodiment of the present application.

[0034] The reference numerals are:

[0035] 1. Flange; 2. Valve seat; 3. Exhaust port; 4. Mounting seat; 5. Elastic member; 6. Valve plate; 7. Raised portion; 8. Mounting plate; 9. Mounting groove; 10. Screw hole; 11. Mounting hole; 12. Vibration-damping groove; 13. Screw; 14. Chamfer. DETAILED DESCRIPTION

[0036] See also Figures 1 to 13 As shown, according to an embodiment of the present application, the exhaust valve assembly includes a flange 1 and an exhaust valve group, a valve seat 2 is provided on the flange 1, an exhaust port 3 is provided on the valve seat 2, the exhaust valve group includes a mounting seat 4, an elastic member 5 and a valve plate 6, the mounting seat 4 is installed on the flange 1, the valve plate 6 is located between the exhaust port 3 and the elastic member 5, one end of the elastic member 5 abuts on the valve plate 6, and the other end abuts on the mounting seat 4, and at least two protrusions 7 are provided on one end of the mounting seat 4 facing the exhaust port 3, and the at least two protrusions 7 are arranged at intervals along the circumference of the mounting seat 4, and the valve plate 6 moves in a guide space formed by the protrusions 7.

[0037] The exhaust valve assembly is provided with a protrusion 7 at one end of the mounting seat 4 close to the exhaust port 3. On the one hand, the protrusion 7 can be used to limit the valve plate 6, so that the valve plate 6 will not be affected by the airflow and cause displacement during the reciprocating motion. The valve plate 6 has high stability and good sealing performance. On the other hand, since the protrusion 7 is only used to limit the valve plate 6, the blocking area is small. After the valve plate 6 is opened, the airflow is less obstructed in the circumferential airway. Therefore, the airflow flow channel can have a larger flow area, small fluid resistance, small exhaust loss, and can effectively improve the performance of the compressor.

[0038] In this embodiment, the circumferential air channel on the valve seat 2 is an arc-shaped air channel, and the width of the arc-shaped air channel is slightly larger than the diameter of the mounting seat 4, which can reduce the difficulty of installing the mounting seat 4. The protrusion 7 can be arranged close to the side wall of the arc-shaped air channel on the valve seat 2, so that the protrusion 7 can avoid the flow channel in the length direction of the arc-shaped air channel as much as possible, which can minimize the influence of the protrusion 7 on the airflow flow, reduce the airflow resistance, and reduce the exhaust loss.

[0039] The raised portion 7 and the mounting seat 4 can be integrally formed, for example, the raised portion 7 can be directly processed on the mounting seat 4, so that the mounting seat 4 and the raised portion 7 have good structural consistency and better structural strength, and at the same time can reduce the difficulty of connecting the raised portion 7 and the mounting seat 4.

[0040] In one embodiment, one end of the mounting seat 4 away from the exhaust port 3 is connected to a mounting plate 8 , a mounting groove 9 is provided on the flange 1 , the mounting plate 8 is installed in the mounting groove 9 , and the mounting seat 4 is fixed on the mounting plate 8 .

[0041] In this embodiment, the mounting plate 8 is directly mounted in the mounting groove 9, and the end extending into the arc-shaped airway is a cantilever end, and the mounting seat 4 is connected to the cantilever end. Since the horizontality of the mounting plate 8 is directly determined by the mounting groove 9, it is only necessary to ensure that the mounting plate 8 and the mounting groove 9 are in plane contact, and the mounting groove 9 is a horizontal bottom surface. At this time, it is only necessary to make the mounting plate 8 and the mounting seat 4 perpendicular to each other to ensure the verticality of the mounting seat 4, thereby ensuring the verticality between the guide hole in the mounting seat 4 for guiding the valve plate 6 and the valve plate 6, ensuring that the valve plate 6 will not tilt during the axial reciprocating motion, and the reliability is higher.

[0042] In one embodiment, a screw hole 10 is provided at the bottom of the mounting groove 9, and a mounting hole 11 is provided on the mounting plate 8. The screw 13 is installed in the screw hole 10 through the mounting hole 11, and the mounting plate 8 is fixed in the mounting groove 9. In this embodiment, since the horizontality of the mounting plate 8 is ensured by the mounting groove 9, the screw 13 here only plays a fixing role. As long as the mounting plate 8 can be pressed tightly against the mounting groove 9, the horizontality of the mounting plate 8 can be ensured. Therefore, the precision requirement for the screw hole 10 is relatively low, and the problem of difficulty in ensuring the verticality of the guide hole in the mounting seat due to the matching clearance of the screw hole 10 itself is effectively avoided.

[0043] In one embodiment, the mounting plate 8 and the mounting seat 4 are integrally formed, which is convenient for direct processing and forming on the one hand, and more convenient for ensuring the verticality between the mounting plate 8 and the mounting seat 4 on the other hand, and thus more effectively ensuring the verticality of the mounting seat 4 through the horizontality of the mounting plate 8. In addition, since the mounting seat 4 is arranged at the cantilever end of the mounting plate 8, which is equivalent to the mounting seat 4 being suspended in the air, only the mounting surface of the mounting plate 8 needs to be processed on the flange, and the mounting seat 4 is installed and fixed by the integrated design of the mounting plate 8 and the mounting seat 4, without the need to set threads on the valve seat 2, the processing is simple, and the process cost is lower.

[0044] In one embodiment, the width of the mounting groove 9 is B, the width of the mounting plate 8 is b, the diameter of the valve plate 6 is D2, the diameter of the exhaust port 3 is D1, (Bb) / 2-(D2-D1) / 2≥0.5mm, so that the installation accuracy between the mounting plate 8 and the mounting groove 9 can be used to ensure the installation accuracy of the valve plate 6 and the sealing of the exhaust port 3.

[0045] In one embodiment, the mounting seat 4 includes a sleeve with one end closed, the protrusion 7 is arranged on the end surface of the open end of the sleeve, and the elastic member 5 abuts on the cover of the sleeve. In this embodiment, the mounting seat 4 is a sleeve structure with one end open, the protrusion 7 forms a claw structure at the open end of the sleeve, the inner hole of the sleeve forms a mounting hole for mounting the elastic member 5, and the cover acts as a stopper for the elastic member 5, so that the other end of the elastic member 5 can be elastically pressed on the valve plate 6, so that the valve plate 6 can be pressed on the exhaust port 3 through the elastic member 5, and play an effective sealing role. The number of claws is at least two, so as to ensure the circumferential limit of the valve plate 6. As a preferred embodiment, the number of claws is three, which can play a more effective circumferential limit effect on the valve plate 6, prevent the valve plate 6 from tilting, and improve the reliability of the movement of the valve plate 6.

[0046] In one embodiment, the protrusion 7 and the sleeve form a stop step at the connection position to stop the movement position of the valve plate 6. In this embodiment, the valve plate 6 moves in the guide space defined by the protrusion 7, and opens the exhaust port 3 upward under the action of the exhaust pressure at the exhaust port 3. When the valve plate 6 moves upward to the position where the stop step is located, it is blocked by the stop step and no longer moves upward, thereby limiting the movement distance of the valve plate 6 and reducing the noise generated when the valve plate 6 covers the exhaust port 3 under the action of the elastic member 5.

[0047] In one embodiment, on the cross section of the sleeve, the inner circumference of each protrusion 7 is located on the same circle, and the valve disc 6 is located within the circumference surrounded by the protrusions 7. Since the valve disc 6 is a circular thin sheet structure, the inner circumference of the protrusion 7 is located on the same cylindrical surface, which is conducive to the cooperation between the valve disc 6 and the protrusion 7, and ensures that the guide space formed by the protrusion 7 has a guiding and limiting effect on the movement of the valve disc 6. In this embodiment, the diameter of the valve disc 6 is slightly smaller than the diameter of the cylindrical guide space surrounded by the protrusion 7, so as to avoid the valve disc 6 from being subjected to large friction resistance during the movement, and at the same time effectively avoid the valve disc 6 from tilting during the movement due to excessive gap, thereby ensuring the stability of the valve disc 6 during the movement.

[0048] In one embodiment, the inner diameter of the sleeve is d, the inner diameter of the protrusion 7 is D, and D>d.

[0049] In one embodiment, the axial height of the raised portion 7 is H, the diameter of the exhaust port 3 is D1, and D1≥H≥D1 / 4. As the compressor runs, when the refrigerant pressure in the working chamber reaches the threshold value, the refrigerant will overcome the back pressure of the valve plate 6 and the combined force of the spring, the valve plate 6 opens, and the exhaust process begins. In this process, the upper dead point of the axial movement of the valve plate 6 is the stop step formed by the mounting seat 4 and the raised portion 7. At this time, the movement stroke of the valve plate 6 is H, which is the lift of the valve plate, and H is related to the exhaust port diameter D1: D1≥H≥D1 / 4, to ensure the smoothness of the exhaust. As the compressor continues to run, the refrigerant in the working chamber is gradually exhausted, and the valve plate will be closed under the action of the back pressure and the elastic member, completing the exhaust process.

[0050] In one embodiment, a vibration-damping groove 12 and / or a chamfer 14 is provided on the protrusion 7, which can increase the flexibility of the protrusion 7 and reduce the vibration and impact transmitted to the protrusion 7 when the valve plate 6 is opened, thereby reducing the noise and vibration of the entire compressor, wherein the form of the vibration-damping groove 12 and the chamfer 14 is not fixed.

[0051] In one embodiment, the vibration-damping groove 12 and / or the chamfer 14 are arranged on the outer peripheral wall of the protrusion 7 .

[0052] In one embodiment, the vibration-damping groove 12 extends along the circumference or axial direction of the protrusion 7 .

[0053] The cross-sectional shape of the vibration-damping groove 12 may be a triangle, a rectangle, a trapezoid, an arc, etc., and the chamfer 14 may be a round chamfer or a straight chamfer, for example.

[0054] In the present application, the mounting plate 8 is connected to the flange 1 by screws 13. The mounting accuracy of the mounting plate 8 is ensured by the width of the mounting groove 9 and the width of the mounting plate 8. The movement of the valve plate 6 is constrained by the guide hole formed by the protrusion 7, which ensures the installation accuracy and movement reliability of the valve system. The lower end of the mounting seat near the exhaust port 3 includes multiple sections of protrusions 7 arranged at intervals along the circumference, and the exhaust circumferential area is large. At the same time, the valve seat 2 of the flange 1 does not rely on the side through hole, and there is no circumferential airflow blocking structure. The exhaust area of ​​the entire valve system is large, the exhaust loss of the compressor is small, and the performance of the compressor is improved. At the same time, the mounting plate 8 and the mounting seat 4 adopt an integrated design. Compared with the solution of processing threads on the periphery of the limit block in the related art, the parts processing process is simple and the cost is low.

[0055] According to an embodiment of the present application, the compressor includes an exhaust valve assembly, which is the exhaust valve assembly mentioned above.

[0056] According to an embodiment of the present application, the air conditioner includes an exhaust valve assembly, which is the above-mentioned exhaust valve assembly.

[0057] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0058] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. An exhaust valve assembly, characterized in that: The invention comprises a flange (1) and an exhaust valve assembly, wherein a valve seat (2) is arranged on the flange (1), an exhaust port (3) is arranged on the valve seat (2), and the exhaust valve assembly comprises a mounting seat (4), an elastic member (5) and a valve plate (6), wherein the mounting seat (4) is mounted on the flange (1), the valve plate (6) is located between the exhaust port (3) and the elastic member (5), one end of the elastic member (5) abuts against the valve plate (6), and the other end abuts against the mounting seat (4), and the mounting seat (4) faces the exhaust port (3). At least two protrusions (7) are arranged at one end of the exhaust port (3), and the at least two protrusions (7) are arranged at intervals along the circumference of the mounting seat (4), and the valve plate (6) moves in a guide space formed by the protrusions (7); the protrusions (7) are provided with vibration-damping grooves (12) and / or chamfers (14), the mounting seat (4) comprises a sleeve with one end closed, the protrusions (7) are arranged on the end surface of the open end of the sleeve, and the elastic member (5) abuts against the cover of the sleeve.

2. The exhaust valve assembly according to claim 1, characterized in that An end of the mounting seat (4) away from the exhaust port (3) is connected to a mounting plate (8), a mounting groove (9) is provided on the flange (1), the mounting plate (8) is mounted in the mounting groove (9), and the mounting seat (4) is fixed on the mounting plate (8).

3. The exhaust valve assembly according to claim 2, characterized in that A screw hole (10) is provided at the bottom of the mounting groove (9), and a mounting hole (11) is provided on the mounting plate (8); a screw (13) is installed in the screw hole (10) through the mounting hole (11), and the mounting plate (8) is fixed in the mounting groove (9).

4. The exhaust valve assembly according to claim 2, characterized in that The mounting plate (8) and the mounting seat (4) are integrally formed.

5. The exhaust valve assembly according to claim 3, characterized in that The width of the mounting groove (9) is B, the width of the mounting plate (8) is b, the diameter of the valve plate (6) is D2, the diameter of the exhaust port (3) is D1, and (Bb) / 2-(D2-D1) / 2≥0.5 mm.

6. The exhaust valve assembly according to claim 1, characterized in that The protrusion (7) and the sleeve form a stop step at the connection position for stopping the movement position of the valve plate (6).

7. The exhaust valve assembly according to claim 6, characterized in that In the cross section of the sleeve, the inner circumferential surfaces of the protrusions (7) are located on the same circle, and the valve plate (6) is located within the circle surrounded by the protrusions (7).

8. The exhaust valve assembly according to claim 7, characterized in that The inner diameter of the sleeve is d, the inner diameter of the protruding portion (7) is D, and D>d.

9. The exhaust valve assembly according to claim 1, characterized in that The axial height of the protruding portion (7) is H, the diameter of the exhaust port (3) is D1, and D1≥H≥D1 / 4.

10. The exhaust valve assembly according to claim 1, characterized in that The vibration-damping groove (12) and / or the chamfer (14) are arranged on the outer peripheral wall of the protrusion (7).

11. The exhaust valve assembly according to claim 10, characterized in that The vibration-damping groove (12) extends along the circumference or axial direction of the protrusion (7).

12. A compressor, characterized in that: The invention comprises an exhaust valve assembly, wherein the exhaust valve assembly is the exhaust valve assembly according to any one of claims 1 to 11.

13. An air conditioner, characterized in that: The invention comprises an exhaust valve assembly, wherein the exhaust valve assembly is the exhaust valve assembly according to any one of claims 1 to 11.

Images