Sealing structure applied to compressor and pumping assembly

Abstract

The utility model relates to the technical field of compressors, and particularly discloses a sealing structure and a pumping assembly applied to a compressor, the sealing structure comprises a first support and a first noise reduction cover, the first noise reduction cover is sleeved outside the first support, and a second support is sleeved outside the first noise reduction cover. The first support comprises a first shaft sleeve and a first panel which is located at one end of the first shaft sleeve and integrally formed in the peripheral direction. The first silencing cover comprises a first base plate and a first cover body formed by extending upwards from the middle of the first base plate, and the edge of the first base plate extends downwards to form a connecting face. The connecting face abuts against the periphery of the first panel, the first base plate abuts against the edge of the first panel, and the first shaft sleeve is located in the first cover body. The compressor can prevent exhaust airflow from blowing engine oil at the bottom of the compressor and prevent pneumatic noise caused by leakage of the exhaust airflow, the use performance of the compressor is effectively improved, and operation noise is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, and in particular to a sealing structure and a pump component applied to a compressor. Background Art

[0002] A rotary compressor is a compressor that compresses and transports gas by changing the working volume through the rotary motion of the rotor in the cylinder. The disadvantages of rotary compressors are high noise and irregularly shaped and long sealing edges. Generally, sealing can only be ensured by high manufacturing precision, so the achievable pressure is limited by the sealing effect.

[0003] For example, the lower exhaust structure and the first muffler cover of the existing rotary compressor have leakage risks, see the attached Figure 1 Due to the limitation of machining accuracy, the joint surface between the first silencer cover and the first support cannot form a complete seal, so when the compressor is exhausted, the gas leaks through the gap of the joint surface. Figure 1 The arrow in the middle indicates the gas leakage path. Gas leakage will blow up the oil at the bottom of the compressor, thereby reducing the performance of the compressor and causing problems such as aerodynamic noise. Utility Model Content

[0004] In response to the above-mentioned problems of reducing compressor performance and causing aerodynamic noise, the utility model provides a sealing structure and a pump assembly applied to the compressor, which can prevent the exhaust airflow from blowing up the oil at the bottom of the compressor and prevent the aerodynamic noise caused by the leakage of the exhaust airflow, thereby effectively improving the performance of the compressor and reducing the operating noise.

[0005] In order to solve the above technical problems, the specific solutions provided by the utility model are as follows:

[0006] A sealing structure applied to a compressor comprises a first support and a first silencer cover, wherein the first silencer cover is sleeved outside the first support;

[0007] The first support includes a first sleeve and a first panel formed integrally in the outer circumferential direction of one end of the first sleeve;

[0008] The first muffler cover comprises a first substrate and a first cover body formed by extending upward from the middle of the first substrate, and a connection surface is formed by extending downward from the edge of the first substrate;

[0009] The connecting surface abuts against the outer periphery of the first panel, the first substrate abuts against the edge of the first panel, and the first sleeve is located in the first cover.

[0010] In some embodiments, a seal is provided at the place where the connecting surface abuts the periphery of the first panel. By providing a seal at the place where the connecting surface abuts the periphery of the first panel, the sealing connection between the first support and the first silencer cover can be further improved, thereby better improving the performance of the compressor and reducing the operating noise.

[0011] In some embodiments, a mounting groove for mounting the seal is provided on the periphery of the first panel, which plays a role in mounting and fixing the seal, which not only facilitates the assembly of the seal, but also improves the installation stability of the seal.

[0012] In some embodiments, the sealing member is a silicone strip, which has a good sealing effect and has the advantages of anti-aging, impact resistance, high temperature resistance and weather resistance.

[0013] In some embodiments, a first through hole is provided on the first substrate near the edge, and a second through hole is provided on the first panel at a position corresponding to the first through hole. A first connecting member is passed through the first through hole and the second through hole, which achieves an effect of aligning the first substrate and the first panel, thereby improving the convenience of assembly on the one hand, and improving the accuracy of assembly and the stability of connection on the other hand.

[0014] The present application also provides a pump assembly, comprising a cylinder body, a crankshaft, a second support, a second muffler cover and the sealing structure described in any one of the above items;

[0015] The second silencer cover is mounted on the second support, the cylinder body is located between the first support and the second support, the crankshaft is passed through the first support, the cylinder body and the second support, and both the first silencer cover and the second silencer cover can have a noise reduction effect on the operation process of the compressor, thereby reducing the operating noise of the compressor.

[0016] In some embodiments, the second support includes a second sleeve and a second panel integrally formed in the circumferential direction of one end of the second sleeve;

[0017] The second silencer hood includes a second substrate and a second cover body formed by extending upward from the middle of the second substrate. A mounting hole is provided in the middle of the second cover body. The mounting hole passes through the second sleeve so that the edge of the second substrate is connected to the second panel. The mounting hole is provided to facilitate the alignment of the second silencer hood and the second support, which can improve the convenience of assembly on the one hand and the accuracy of assembly on the other.

[0018] In some embodiments, the edge of the second base plate is locked and connected to the second panel via a second connecting member to ensure the connection stability between the second base plate and the second panel, thereby improving the overall operation stability of the compressor.

[0019] In some embodiments, an exhaust hole is provided on the second cover body, and air flow is discharged to the outside of the second silencer cover through the exhaust hole.

[0020] In some embodiments, the number of the exhaust holes is two or more, so that the gas in the second silencer can be discharged in multiple directions, achieving a better exhaust effect.

[0021] Compared with the prior art, the beneficial effect of the utility model is that: the utility model provides a sealing structure and a pump assembly for a compressor, which extends downward at the edge of the first substrate of the first silencer to form a connecting surface, and makes the connecting surface abut against the outer periphery of the first panel, and the first substrate abuts against the edge of the first panel. Compared with the traditional structural design of the first silencer, it can better prevent the exhaust airflow from blowing up the oil at the bottom of the compressor, and prevent the pneumatic noise caused by the leakage of the exhaust airflow, thereby effectively improving the performance of the compressor and reducing the operating noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a sealing structure in the background technology;

[0023] Figure 2 This is a schematic diagram of a sealing structure applied to a compressor provided in Embodiment 1 of the utility model;

[0024] Figure 3 A cross-sectional view of a sealing structure applied to a compressor provided in Embodiment 1 of the utility model;

[0025] Figure 4 An exploded diagram of a sealing structure applied to a compressor provided in Embodiment 1 of the present utility model;

[0026] Figure 5 A cross-sectional view of a sealing structure applied to a compressor provided in Embodiment 2 of the present utility model;

[0027] Figure 6 An exploded diagram of a sealing structure applied to a compressor provided in the second embodiment of the present utility model;

[0028] Figure 7 This is a schematic diagram of a sealing structure applied to a compressor provided in Embodiment 3 of the present utility model;

[0029] Figure 8 This is a schematic diagram of the structure of the pump assembly provided in the fourth embodiment of the present utility model;

[0030] Fig. 9 An exploded view of a pump assembly provided in a fourth embodiment of the present utility model;

[0031] 1-first support; 11-first sleeve; 12-first panel; 13-mounting groove; 14-second through hole;

[0032] 2-first soundproof cover; 21-first substrate; 22-first cover body; 23-connecting surface; 24-first through hole;

[0033] 3- Seals;

[0034] 4- first connecting member;

[0035] 5-cylinder body;

[0036] 6-crankshaft;

[0037] 7-second support; 71-second sleeve; 72-second panel;

[0038] 8-second muffler cover; 81-second substrate; 82-second cover body; 83-mounting hole; 84-exhaust hole;

[0039] 9- Second connecting piece. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. The described implementation is a part of the implementation of the utility model, not all of the implementations.

[0041] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0042] Embodiment 1:

[0043] In conventional designs, the end surface of the first support 1 is connected to the opening of the first muffler cover 2. Due to the limitation of machining accuracy, when the compressor is exhausted, the gas will leak through the gap between the joint surface of the first support 1 and the first muffler cover 2. Figure 1 It can be seen that the gap at the joint surface between the first support 1 and the first silencer cover 2 is a straight gap from the inside to the outside. When gas leaks, it is easy for the oil at the bottom of the compressor to be blown out of the first silencer cover 2 through the straight gap from the inside of the first silencer cover 2 to the outside of the first silencer cover 2, thereby reducing the performance of the compressor and causing problems such as aerodynamic noise.

[0044] refer to Figure 2-Figure 4In this example, a sealing structure for a compressor is provided, which includes a first support 1 and a first silencer cover 2 , wherein the first silencer cover 2 is sleeved on the outside of the first support 1 .

[0045] Specifically, the first support 1 includes a first sleeve 11 and a first panel 12 integrally formed in the circumferential direction of one end of the first sleeve 11. It can be known that the first sleeve 11 is used for the insertion and fixation of the compressor crankshaft, and the first sleeve 11 is located in the middle of the first panel 12 and is an integrally formed structure with the first panel 12.

[0046] The first silencer 2 includes a first substrate 21 and a first cover body 22 formed by extending upward from the middle of the first substrate 21. The first cover body 22 is used to reduce or eliminate the airflow noise generated by the change in cavity volume inside the compressor. A connecting surface 23 is formed by extending downward from the edge of the first substrate 21. For ease of understanding, the first substrate 21 is set as a circular plate structure here. The first cover body 22 is formed in the middle of the first substrate 21. The edge of the first substrate 21 is a circular periphery, which extends downward to form the connecting surface 23.

[0047] The connecting surface 23 abuts against the outer periphery of the first panel 12, the first substrate abuts against the edge of the first panel, and the first sleeve 11 is located in the first cover body 22. It can be understood that, based on the above-mentioned setting of the first substrate 21 as a circular plate structure, in order to make the abutment between the connecting surface 23 and the outer periphery of the first panel 12 form a certain sealing effect, the first panel 12 is also a circular plate structure.

[0048] When assembling the first silencer cover 2 and the first support 1, the first sleeve 11 is oriented toward the first cover body 22, and the connecting surface 23 is in contact with the outer periphery of the first panel 12. For ease of understanding, it is assumed that the first panel 12 includes a first surface, a second surface, and an outer peripheral surface that are arranged opposite to each other, wherein the surface connected to one end of the sleeve is the first surface, and the second surface is the outer peripheral surface. Figure 3 It can be seen that after the assembly is completed, there are two joint surfaces between the first muffler cover 2 and the first support 1. The first joint surface is the connection between the first surface of the first panel 12 and the first substrate 21, and the second joint surface is the connection between the outer peripheral surface of the first panel 12 and the connecting surface 23. Figure 3 It can be clearly seen that the first bonding surface and the second bonding surface form an L-shaped bonding surface. Compared with the conventional first support 1 and the first silencer 2 having only one bonding surface, the L-shaped bonding surface can better prevent the exhaust airflow from blowing up the oil at the bottom of the compressor and prevent the starting noise caused by the leakage of the exhaust airflow, thereby effectively improving the performance of the compressor and reducing the operating noise.

[0049] Embodiment 2:

[0050] refer to Figure 5 and Figure 6In this example, a seal 3 is provided at the connection surface 23 and the outer periphery of the first panel 12. By providing the seal 3 at the connection surface 23 and the outer periphery of the first panel 12, the sealing connection between the first support 1 and the first silencer cover 2 can be further improved, thereby achieving a better effect of improving the performance of the compressor and reducing the operating noise.

[0051] Since the seal 3 is provided at the junction of the connecting surface 23 and the outer periphery of the first panel 12, the gas inside the first silencer 2 cannot leak, thereby not causing the problem of oil blowing out from the bottom of the compressor, thereby avoiding problems such as affecting the compressor performance and causing aerodynamic noise.

[0052] In some examples, the outer periphery of the first panel 12 is provided with an installation groove 13 for installing the seal 3. The installation groove 13 can play a role in installing and fixing the seal 3. On the one hand, it is convenient for the assembly of the seal 3, and on the other hand, it can also improve the installation stability of the seal 3.

[0053] During specific assembly, the sealing member 3 is first placed in the installation groove 13 , and then the connecting surface 23 is sleeved on the outer periphery of the first panel 12 and is in abutting relationship with the first panel 12 .

[0054] Among them, the seal 3 is a silicone strip, which has a certain elasticity and can achieve an interference installation effect, thereby ensuring a better sealing effect. Since the silicone strip has the advantages of anti-aging, impact resistance, high temperature resistance and weather resistance, the silicone strip is applied to the sealing structure to ensure its service life and reduce disassembly and replacement work.

[0055] A sealing structure for a compressor provided in this embodiment is provided, by setting an installation groove 13 on the periphery of a first panel 12, and installing a seal 3 in the installation groove 13, and sealing the junction between the periphery of the first panel 12 and the connecting surface 23 by the seal 3, which can better prevent the exhaust airflow from blowing up the oil at the bottom of the compressor and prevent the starting noise caused by the leakage of the exhaust airflow, thereby effectively improving the performance of the compressor and reducing the operating noise.

[0056] Embodiment three:

[0057] refer to Figure 7 In this example, a first through hole 24 is provided on the first substrate 21 near the edge, and a second through hole 14 is provided on the first panel 12 at a position corresponding to the first through hole 24. A first connecting member 4 is passed through the first through hole 24 and the second through hole 14. The provision of the first through hole 24 and the second through hole 14 can achieve the effect of aligning the first substrate 21 and the first panel 12, which can improve the convenience of assembly on the one hand, and improve the accuracy of assembly and the stability of connection on the other hand.

[0058] It should be noted that, in this example, there is no specific restriction on the number of the first through holes 24 and the second through holes 14, and they can be adjusted according to actual needs, and the number of the first through holes 24 and the second through holes 14 can be adapted to each other. For example, the number of the first through holes 24 is three or four, and the three or four first through holes 24 are evenly spaced on the first substrate 21. It can be understood that the positions of the second through holes 14 are adapted to the first through holes 24.

[0059] In this example, by providing the first through hole 24 and the second through hole 14, it is convenient to assemble the first support 1 and the first silencer cover 2, thereby improving the assembly efficiency.

[0060] Embodiment 4:

[0061] refer to Figure 8 and Fig. 9 The present application also provides a pump assembly, which includes a cylinder body 5, a crankshaft 6, a second support 7, a second silencer cover 8 and a sealing structure in any of the above embodiments, and each component constitutes a compression chamber, which is used to realize a cyclic process of sucking in low-temperature and low-pressure refrigerant gas, compressing it into high-temperature and high-pressure gas, and then discharging it.

[0062] The second silencer cover 8 is mounted on the second support 7, the cylinder body 5 is located between the first support 1 and the second support 7, the crankshaft 6 is passed through the first support 1, the cylinder body 5 and the second support 7, and the crankshaft 6 is installed and fixed by the first support 1, the cylinder body 5 and the second support 7. The first silencer cover 2 and the second silencer cover 8 can both have a noise reduction effect on the operation process of the compressor and reduce the operating noise of the compressor.

[0063] In some examples, the second support 7 includes a second sleeve 71 and a second panel 72 integrally formed in the circumferential direction of one end of the second sleeve 71, the second sleeve 71 is used for passing through and fixing the compressor crankshaft 6, and the second sleeve 71 is located in the middle of the second panel 72 and is an integrally formed structure with the second panel 72.

[0064] The second silencer 8 includes a second substrate 81 and a second cover body 82 formed by extending upward from the middle of the second substrate 81. The second cover body 82 is used to reduce or eliminate the airflow noise generated by the change in cavity volume inside the compressor. A mounting hole 83 is provided in the middle of the second cover body 82. The mounting hole 83 passes through the second shaft sleeve 71 so that the edge of the second substrate 81 is connected to the second panel 72. The mounting hole 83 is provided to facilitate the alignment of the second silencer 8 and the second support 7. On the one hand, it can improve the convenience of assembly, and on the other hand, it can improve the accuracy of assembly.

[0065] In some examples, the edge of the second base plate 81 is locked and connected to the second panel 72 via the second connecting member 9 to ensure the connection stability between the second base plate 81 and the second panel 72, thereby improving the overall operating stability of the compressor.

[0066] Regarding the specific connection method between the second substrate 81 and the second panel 72, it can be understood by referring to Example 3, that is, the second connecting member 9 can be used to perform a locking connection by setting aligned mounting through holes on the second substrate 81 and the second panel 72 to ensure the stability of the connection between the second substrate 81 and the second panel 72.

[0067] In some examples, an exhaust hole 84 is disposed on the second cover body 82 , and air is discharged to the outside of the second silencer cover 8 through the exhaust hole 84 .

[0068] In combination with conventional technology, an exhaust valve port is provided on the first support 1 or the second support 7 for discharging high-temperature and high-pressure refrigerant gas. In this example, an exhaust valve port is provided on the second support 7. When the high-temperature and high-pressure refrigerant gas is discharged, airflow noise will be generated due to the change in the volume of the front and rear cavities. Therefore, the second silencer 8 is mainly used to eliminate airflow noise, and the exhaust hole 84 is used to cooperate with the exhaust valve port to discharge the airflow.

[0069] The number of the exhaust holes 84 is two or more. The arrangement of the plurality of exhaust holes 84 enables the gas in the second silencer 8 to be discharged in multiple directions, thus achieving a better exhaust effect.

[0070] In summary, the utility model provides a sealing structure and a pump assembly for a compressor, in which a connecting surface is extended downward at the edge of the first substrate of the first silencer to form a connecting surface, and the connecting surface is abutted against the outer periphery of the first panel, and the first substrate is abutted against the edge of the first panel. Compared with the traditional structural design of the first silencer, it can better prevent the exhaust airflow from blowing up the oil at the bottom of the compressor, and prevent the pneumatic noise caused by the leakage of the exhaust airflow, thereby effectively improving the performance of the compressor and reducing the operating noise.

[0071] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0072] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0073] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

Claims

1. A sealing structure applied to a compressor, characterized in that: It comprises a first support (1) and a first silencer cover (2), wherein the first silencer cover (2) is sleeved outside the first support (1); The first support (1) comprises a first sleeve (11) and a first panel (12) integrally formed in the outer circumferential direction of one end of the first sleeve (11); The first sound-absorbing cover (2) comprises a first substrate (21) and a first cover body (22) formed by extending upward from the middle of the first substrate (21), and a connection surface (23) is formed by extending downward from the edge of the first substrate (21); The connecting surface (23) abuts against the outer periphery of the first panel (12), the first substrate (21) abuts against the edge of the first panel (12), and the first shaft sleeve (11) is located inside the first cover body (22).

2. The sealing structure for a compressor according to claim 1, characterized in that: A sealing member (3) is provided at the point where the connecting surface (23) abuts against the outer periphery of the first panel (12).

3. The sealing structure for a compressor according to claim 2, characterized in that: The outer periphery of the first panel (12) is provided with a mounting groove (13) for mounting the sealing member (3).

4. The sealing structure for a compressor according to claim 2, characterized in that: The sealing element (3) is a silicone strip.

5. The sealing structure for a compressor according to claim 1, characterized in that: A first through hole (24) is provided on the first substrate (21) at a position close to the edge, a second through hole (14) is provided on the first panel (12) at a position corresponding to the first through hole (24), and a first connecting member (4) is inserted into the first through hole (24) and the second through hole (14).

6. A pump assembly, characterized in that: It comprises a cylinder block (5), a crankshaft (6), a second support (7), a second silencer cover (8) and a sealing structure according to any one of claims 1 to 5; The second silencer cover (8) is sleeved on the second support (7), the cylinder body (5) is located between the first support (1) and the second support (7), and the crankshaft (6) is inserted into the first support (1), the cylinder body (5) and the second support (7).

7. The pump assembly according to claim 6, characterized in that: The second support (7) comprises a second sleeve (71) and a second panel (72) integrally formed in the outer circumferential direction of one end of the second sleeve (71); The second silencer cover (8) comprises a second base plate (81) and a second cover body (82) formed by extending upward from the middle of the second base plate (81); a mounting hole (83) is provided in the middle of the second cover body (82); the mounting hole (83) passes through the second shaft sleeve (71), so that the edge of the second base plate (81) is connected to the second panel (72).

8. The pump assembly according to claim 7, characterized in that: The edge of the second base plate (81) is locked and connected to the second panel (72) via a second connecting member (9).

9. The pump assembly according to claim 7, characterized in that: The second cover body (82) is provided with an exhaust hole (84).

10. The pump assembly according to claim 9, characterized in that The number of the exhaust holes (84) is two or more.

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