Compressor and refrigeration apparatus

Abstract

The present application relates to a compressor and a refrigeration device. The compressor comprises a cylinder base provided with a shaft hole and an exhaust port; a cylinder cover assembly forming a gas containing cavity with the cylinder base, the cylinder cover assembly comprising an air inlet; a cylinder provided with a cylinder hole and a gas passage hole, the cylinder hole being in communication with the air inlet to form a suction passage, and the cylinder hole being in communication with the gas passage hole through the containing cavity to form an exhaust passage; a valve plate assembly for opening or closing the suction passage and opening or closing the exhaust passage; a crankshaft comprising a long shaft and a short shaft, the long shaft being arranged in the shaft hole, the short shaft being arranged at the end of the long shaft and the axis of the short shaft coinciding with the axis of the long shaft, the top surface of the short shaft being formed as a curved surface structure, provided with a curved sliding way, and having a top dead center and a bottom dead center; and a piston, the piston body being arranged in the cylinder hole, and the connecting head being slidably arranged in the curved sliding way and being capable of sliding along the curved sliding way between the top dead center and the bottom dead center to make the piston body reciprocate up and down in the cylinder hole. The compressor of the present application has low noise, high refrigeration capacity and less oil discharge.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compressor, in particular to a compressor and a refrigeration equipment. BACKGROUND

[0002] The conventional refrigeration compressor adopts a crank connecting rod mechanism to realize the reciprocating movement of a piston in a cylinder to complete the suction and discharge process of the compressor.

[0003] Because the crank connecting rod mechanism generates rotary motion and reciprocating motion in the process of high-speed movement, rotary inertia force and reciprocating inertia force will be generated, and a balance block needs to be added for counterweight, but part of the unbalanced force is increased from the reciprocating movement direction to the horizontal direction, and the second-order reciprocating inertia force cannot be balanced, and because the reciprocating inertia force cannot be completely balanced, the compressor vibrates; and vibration is the root cause of all noise, so vibration leads to an increase in the noise of the compressor. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a compressor and a refrigeration equipment.

[0005] The present application aims to design a new refrigeration compressor structure to eliminate the rotary inertia force and reciprocating inertia force generated by the compressor, so as to realize the purposes of low vibration and noise, high refrigerating capacity, and less oil discharge during the operation of the compressor.

[0006] The compressor comprises:

[0007] A cylinder seat provided with a shaft hole and a discharge port;

[0008] A cylinder head assembly arranged on the cylinder seat and forming a gas containing cavity with the cylinder seat, the cylinder head assembly comprising an air inlet;

[0009] A cylinder arranged between the cylinder seat and the cylinder head assembly, the cylinder being provided with a cylinder hole and an air passage hole, the cylinder hole being in communication with the air inlet to form a suction passage, and the cylinder hole being in communication with the air passage hole through the containing cavity to form a discharge passage;

[0010] A valve plate assembly arranged between the cylinder head assembly and the cylinder, the valve plate assembly being used to open or close the suction passage and open or close the discharge passage;

[0011] A crankshaft comprising a long shaft and a short shaft, the long shaft being arranged in the shaft hole, the short shaft being arranged at the end of the long shaft and the axis of the short shaft coinciding with the axis of the long shaft, the top surface of the short shaft being formed as a curved surface structure, a curved sliding way being arranged on the curved surface structure, the curved sliding way having a top dead center and a bottom dead center below the top dead center;

[0012] A piston comprises a piston body, a connecting head and a piston rod connected between the piston body and the connecting head, the piston body is located in the cylinder bore, the connecting head is slidably arranged in the curved sliding channel and can slide along the curved sliding channel between the top dead center and the bottom dead center to make the piston body reciprocate up and down in the cylinder bore.

[0013] In some embodiments, an annular groove is formed on the curved surface structure, the annular groove forms an annular curved sliding channel,

[0014] The connecting head is slidably arranged in the annular groove and is matched with the annular groove.

[0015] In some embodiments, an assembly groove is arranged on the curved surface structure and communicates with the annular groove, an assembly hole is formed on the assembly groove, and the assembly hole is used for the connecting head to enter the annular groove through the assembly groove.

[0016] In some embodiments, the cylinder cover assembly comprises a cylinder cover and a muffler, the cylinder cover covers the cylinder seat, and the muffler is located between the cylinder cover and the cylinder seat.

[0017] The muffler comprises a muffling cavity, and the intake port is formed in the muffling cavity, the intake port communicates with the cylinder bore through the muffling cavity.

[0018] In some embodiments, the muffling cavity comprises an annular cavity part and a protruding cavity part extending from the annular cavity part towards the radial inner side thereof, the cylinder cover covers the annular cavity part between the cylinder cover and the cylinder seat, and the protruding cavity part extends towards the inside of the containing cavity.

[0019] In some embodiments, the valve plate assembly comprises a valve plate, an air suction valve plate and an air exhaust valve plate arranged on both sides of the valve plate respectively, the valve plate is provided with an air suction hole, an air exhaust hole and a communication hole, the air suction hole communicates with the air suction channel, the air exhaust hole communicates with the air exhaust channel, and the communication hole communicates with the air passage, the air suction valve plate is used for opening or closing the air suction hole to open or close the air suction channel, and the air exhaust valve plate is used for opening or closing the air exhaust hole to open or close the air exhaust channel.

[0020] In some embodiments, the valve plate assembly further comprises an air suction valve plate gasket arranged between the cylinder and the air suction valve plate, and an air exhaust valve plate gasket arranged between the cylinder cover and the air exhaust valve plate.

[0021] In some embodiments, the cylinder seat comprises a seat body and a cylinder support frame arranged on the seat body,

[0022] The shaft hole is formed on the seat body, and the exhaust port is formed on the support frame.

[0023] The cylinder is supported on the cylinder support frame.

[0024] In some embodiments, the compressor is a multi-cylinder compressor, wherein the cylinder cover assembly comprises a plurality of intake ports.

[0025] The intake ports are arranged in multiple numbers, the intake ports are arranged at intervals, each of the intake ports is in communication with the corresponding intake port to form a plurality of suction passages, and each intake port is in communication with the vent hole through the containing cavity to form a plurality of exhaust passages.

[0026] The valve plate assembly is used to open and close the corresponding suction passage and exhaust passage.

[0027] The pistons are arranged in multiple numbers, the slide includes multiple slides, the connecting head of each piston is slidingly arranged in the corresponding slide, and slides along the top dead center and the bottom dead center of the corresponding slide, respectively, so that the plurality of pistons reciprocate up and down in the corresponding cylinder bore.

[0028] In some embodiments, further comprising:

[0029] The motor comprises a stator and a rotor, the rotor is fixed on the long shaft of the crankshaft, the stator surrounds the rotor, and the stator is fixed on the cylinder seat of the cylinder assembly.

[0030] The application also provides a refrigeration device comprising the compressor according to any one of the above embodiments.

[0031] Compared with the prior art, the application has the following beneficial effects:

[0032] The application uses a non- eccentric structure of the crankshaft, a piston with a connecting head, and the connecting head slides along the curved slide between the top dead center and the bottom dead center, so that the piston body reciprocates up and down in the cylinder bore to complete the suction and exhaust actions. The application solves the problem of increased vibration and noise of the compressor caused by the rotational inertia force and the reciprocating inertia force in the movement process of the crank and connecting rod mechanism of the traditional refrigeration device, such as a refrigerator compressor, and reduces the vibration and noise of the compressor. On the other hand, the cylinder does not need a crescent groove, which reduces the risk of oil discharge of the compressor and the mixing of refrigeration oil and refrigerant, and achieves the beneficial effects of improving the refrigeration capacity of the compressor and reducing oil discharge.

[0033] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0034] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is to be understood that various embodiments can be used, and structural and functional modifications can be made without departing from the scope of the present application disclosed in the appended claims.

[0035] Figure 1 is a disassembled schematic view of a compressor according to an exemplary embodiment of the present application;

[0036] Figure 2 is a disassembled schematic view of a compressor according to an exemplary embodiment of the present application, with a housing removed;

[0037] Figure 3 is a schematic view of a cylinder block structure according to an exemplary embodiment of the present application;

[0038] Figure 4 is a schematic view of a crankshaft structure according to an exemplary embodiment of the present application;

[0039] Figure 5 is a schematic view of a piston structure according to an exemplary embodiment of the present application;

[0040] Figure 6 is a schematic view of a cylinder structure according to an exemplary embodiment of the present application;

[0041] Figure 7 is a disassembled schematic view of a cylinder head assembly and valve assembly according to an exemplary embodiment of the present application;

[0042] Figure 8 is a schematic view of a muffler structure according to an exemplary embodiment of the present application;

[0043] Figure 9 is a schematic view of a compressor suction and discharge path according to an exemplary embodiment of the present application;

[0044] It is to be understood that the drawings and the associated descriptions are only intended to illustrate the concept of the present application and to explain the principle of the present application, and are not intended to limit the scope of the present application in any way. DETAILED DESCRIPTION

[0045] In the description of the present application, it should be noted that the terms "inner", "outer", and the like indicate the positional or locational relationship based on the positional or locational relationship shown in the drawings, and are only intended to facilitate the description of the present application and simplify the description, and therefore should not be construed or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application.

[0046] In the description of the present application, it is necessary to point out that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking", "contacting", "communication" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] The present application provides a kind of compressor, solve the problem that traditional refrigeration equipment, such as refrigerator refrigeration compressor crank connecting rod mechanism movement produces rotational inertia force and reciprocating inertia force, leading to the increase of compressor vibration noise, reduce the noise and vibration of compressor.On the other hand, the design of the gas cylinder without crescent groove reduces the risk of compressor oil discharge and refrigeration oil mixing with refrigerant, achieves the beneficial effect of improving the refrigeration capacity of compressor and less oil discharge.

[0048] As shown in Figures 1-9 , the compressor can include a housing and a core 2 contained in the housing. The core 2 includes a cylinder seat 20, a cylinder cover assembly 30, a cylinder 40, a valve assembly, a crankshaft 50 and a piston 60.

[0049] As shown in Figure 1 , the housing can include an upper shell 11 and a lower shell 12, and the upper shell 11 and the lower shell 12 form a containing space for containing the core 2.

[0050] As shown in Figure 2 and Figure 3 , the cylinder seat 20 is provided with a shaft hole 21 and an exhaust port. The cylinder seat 20 is used to support the cylinder 40, and cooperates with the cylinder cover assembly to form a closed gas containing cavity.

[0051] For example, the cylinder seat 20 can include a seat body and a cylinder support 22 provided on the seat body. The shaft hole 21 is formed on the seat body for mounting the crankshaft 50. The cylinder support 22 is adapted to the structure of the cylinder 40, for example, it can be in the form of a ring. The central hole of the ring-shaped cylinder support 22 corresponds to the shaft hole 21. The exhaust port is provided on the cylinder support 22. For example, the exhaust port includes an exhaust port inlet end 231 provided on the top surface of the cylinder support 22 and an exhaust port outlet end 232 provided on the side surface of the cylinder support 22, wherein the exhaust port inlet end 231 communicates with the exhaust port outlet end 232. More specifically, a plurality of mounting and positioning holes are uniformly distributed on the cylinder support 22 for mounting and positioning screws 71.

[0052] The above example shows that the cylinder seat 20 is a split structure, but the present application is not limited thereto, in other embodiments, the cylinder seat 20 can also be an integral injection structure.

[0053] In combinationFigure 2 and Figure 7 As shown in FIG. 1, the cylinder head assembly 30 is arranged on the cylinder base 20 to form a gas containing cavity with the cylinder base 20, and the cylinder head assembly 30 comprises an air inlet.

[0054] In an example, the cylinder head assembly 30 comprises a cylinder head 31 having an inner cavity structure, and a plurality of mounting and positioning holes are formed on the cylinder head 31 to match the mounting and positioning holes on the cylinder support 22. When mounted, the cylinder head 31 is buckled on the top surface of the cylinder support 22 and locked and fixed by positioning screws 71.

[0055] As shown in FIG. 2, the cylinder head assembly 30 comprises a cylinder head 31 having an inner cavity structure, and a plurality of mounting and positioning holes are formed on the cylinder head 31 to match the mounting and positioning holes on the cylinder support 22. When mounted, the cylinder head 31 is buckled on the top surface of the cylinder support 22 and locked and fixed by positioning screws 71. Figure 2 and Figure 6 As shown in FIG. 3, the cylinder head assembly 30 comprises a cylinder head 31 having an inner cavity structure, and a plurality of mounting and positioning holes are formed on the cylinder head 31 to match the mounting and positioning holes on the cylinder support 22. When mounted, the cylinder head 31 is buckled on the top surface of the cylinder support 22 and locked and fixed by positioning screws 71. Figure 6 is a schematic view of the cylinder structure, in which the position of the air passage hole is partially sectioned.

[0056] The cylinder 40 is arranged between the cylinder base 20 and the cylinder head assembly 30. The cylinder 40 is provided with a cylinder bore 41 and an air passage hole. The cylinder bore 41 is in communication with the air inlet of the cylinder head assembly 30 to form an air suction passage (as shown in FIG. 4), and the cylinder bore 41 is in communication with the air passage hole through the containing cavity to form an exhaust passage (as shown in FIG. 5). Figure 9 Figure 9 The cylinder 40 is arranged between the cylinder base 20 and the cylinder head assembly 30. The cylinder 40 is provided with a cylinder bore 41 and an air passage hole. The cylinder bore 41 is in communication with the air inlet of the cylinder head assembly 30 to form an air suction passage (as shown in FIG. 4), and the cylinder bore 41 is in communication with the air passage hole through the containing cavity to form an exhaust passage (as shown in FIG. 5).

[0057] In an example, the cylinder 40 can have a disc structure, and the cylinder bore 41 and the mounting holes are arranged in a uniform manner on the cylinder 40. In addition, the cylinder 40 is provided with the air passage hole, which comprises an air passage hole inlet 421 arranged on the top surface of the cylinder 40 and an air passage hole outlet 422 arranged on the bottom surface of the cylinder 40. The air passage hole inlet 421 can be located at the center of the top surface, and the air passage hole outlet 422 can be located near the edge of the bottom surface and in communication with the air inlet end 231 of the exhaust port on the top surface of the cylinder support 22.

[0058] As shown in FIG. 6, the valve plate assembly is arranged between the cylinder head assembly 30 and the cylinder 40, and the valve plate assembly is used to open or close the air suction passage and the exhaust passage. Figure 7 In an example, the valve plate assembly comprises a valve plate 91 and an air suction valve plate 92 and an exhaust valve plate 93 arranged on both sides of the valve plate 91, respectively. The valve plate 91 is provided with an air suction hole, an exhaust hole and a communication hole. The air suction hole is in communication with the air suction passage, the exhaust hole is in communication with the exhaust passage, and the communication hole is in communication with the air passage hole. The air suction valve plate 92 is used to open or close the air suction hole to open or close the air suction passage, and the exhaust valve plate 93 is used to open or close the exhaust hole to open or close the exhaust passage.

[0059] The valve plate assembly further comprises an air suction valve plate gasket 94 arranged between the cylinder 40 and the air suction valve plate 92, and an exhaust valve plate gasket 95 arranged between the cylinder head 31 and the exhaust valve plate 93.

[0060] The valve plate assembly further comprises an air suction valve plate gasket 94 arranged between the cylinder 40 and the air suction valve plate 92, and an exhaust valve plate gasket 95 arranged between the cylinder head 31 and the exhaust valve plate 93.​

[0061] In one example, the intake valve plate gasket 94, the intake valve plate 92, the valve plate 91, and the exhaust valve plate gasket 95 are arranged in order from bottom to top between the cylinder support 22 and the cylinder head 31, and are positioned by the positioning screw 71 and fixed by press fitting between the cylinder support 22 and the cylinder head 31, thereby forming the intake passage having the intake path and the exhaust passage having the exhaust path.

[0062] It is worth noting that the above-mentioned intake passage and exhaust passage can be formed in multiple, two are shown in the drawings, but not limited thereto. Correspondingly, the number of cylinder bores and pistons of the cylinder 40 corresponds to the number of exhaust passages and intake passages, and can also be multiple. That is, the compressor can be a single-cylinder, double-cylinder, three-cylinder, or multi-cylinder compressor.

[0063] Next, as shown in Figures 2-4 , the crankshaft 50 includes a long shaft 51 and a short shaft 52, the long shaft 51 is arranged in the shaft hole 21, and the short shaft 52 is arranged at the end of the long shaft 51 and the short shaft axis coincides with the long shaft axis, that is, the crankshaft 50 is a non- eccentric structure. The top surface of the short shaft 52 is formed as a curved surface structure, and a curved sliding groove 53 is arranged on the curved surface structure, the curved sliding groove 53 has a top dead center 531 and a bottom dead center 532 below the top dead center.

[0064] In combination Figure 2 , Figure 4 , Figure 5 and Figure 6 , the piston 60 includes a piston body 61, a connecting head 63, and a piston rod 62 connected between the piston body 61 and the connecting head 63, the piston body 61 is located in the cylinder bore 41, the connecting head 63 is slidably arranged in the curved sliding groove 53 and can slide along the curved sliding groove 52 between the top dead center 531 and the bottom dead center 532, so that the piston body 61 reciprocates up and down in the cylinder bore 41 to complete the intake and exhaust actions.

[0065] In one example, an annular groove is arranged on the curved surface structure, and the annular groove forms an annular curved sliding groove 53. The connecting head 63 is slidably arranged in the annular groove and is matched with the annular groove. The connecting head 63 can be spherical.

[0066] For easy installation, in some embodiments, an assembly groove 54 is arranged on the curved surface structure and communicates with the annular groove, and an assembly hole 541 is formed on the assembly groove 54, which is used for the connecting head 63 to enter and be installed in the annular groove through the assembly groove 54.

[0067] The present application has a connecting head of the piston 60, which slides along the curved slide 52 between the top dead center 531 and the bottom dead center 532 through the connecting head, so that the piston body 61 reciprocates up and down in the cylinder bore 41 to complete the suction and exhaust actions. The problem of increasing vibration and noise of the compressor caused by the rotational inertia force and the reciprocating inertia force during the movement of the crank and connecting rod mechanism of the conventional refrigeration equipment, such as the refrigeration compressor of the refrigerator, is solved, and the vibration and noise of the compressor are reduced. On the other hand, the cylinder does not need a crescent groove, which reduces the risk of oil discharge of the compressor and mixing of refrigeration oil and refrigerant, and achieves the beneficial effects of improving the refrigeration capacity of the compressor and reducing oil discharge.

[0068] In some embodiments, as shown in Figure 2 and Figure 8 , the cylinder head assembly includes a cylinder head and a muffler 32, the cylinder head covers the cylinder seat, and the muffler 32 is located between the cylinder head and the cylinder seat.

[0069] The muffler 32 includes a muffling cavity, and an air inlet 323 is formed in the muffling cavity, which communicates with the cylinder bore through the muffling cavity.

[0070] In some embodiments, the muffling cavity 32 includes an annular cavity portion 321 and a protruding cavity portion 322 extending from the annular cavity portion 321 towards the radial inner side thereof, and the cylinder head covers the annular cavity portion between the cylinder head and the cylinder seat, and the protruding cavity portion 322 extends towards the inside of the containing cavity.

[0071] In an example, the compressor is a multi-cylinder compressor, wherein the cylinder head assembly 30 includes a plurality of air inlets; the air inlets 41 are provided in plurality, the plurality of air inlets 41 are arranged at intervals, each air inlet 41 communicates with the corresponding air inlet to form a plurality of suction passages, and each air inlet 41 communicates with the air hole through the containing cavity to form a plurality of exhaust passages; the valve plate assembly is used to open and close the corresponding suction passage and exhaust passage; the piston 60 is provided in plurality, the slide 53 includes a plurality of slides, the connecting head of each piston is slidingly arranged in the corresponding slide, and respectively slides along the top dead center and the bottom dead center of the corresponding slide, so that a plurality of the piston bodies reciprocate up and down in the corresponding cylinder bore 41.

[0072] In some embodiments, as shown in Figure 2 , the compressor further includes a motor, the motor includes a stator 82 and a rotor 81, the rotor 81 is fixed on the long shaft 51 of the crankshaft 50, the stator 82 surrounds the rotor 81, the stator 82 is fixed on the cylinder seat 20 of the cylinder assembly, for example, fixed on the cylinder seat 20 through the compression spring assembly.

[0073] The motor assembly includes a motor rotor 81 and a motor stator 82. The motor rotor 81 is fixedly connected to the long shaft 51 of the crankshaft 50 by interference fit. The motor stator 82 is fixed to the cylinder block 20 by a compression spring assembly 83. The motor rotor 81 rotates to provide rotary power for the crankshaft 50. The crankshaft 50 is installed on the cylinder block 20. The piston 60 is connected to the short shaft 52 of the crankshaft 50 by a connecting ball head 63 and slides on the slide 53. The piston body 60 is assembled in the cylinder bore 41 of the cylinder. The rotary motion of the crankshaft 50 causes the piston body 60 to reciprocate in the cylinder bore 41 to achieve the compression and exhaust work. When the compressor is in the suction process, the crankshaft 50 rotates to drive the piston body 60 to move downward. At this time, the connecting ball head 63 slides on the slide 53 and starts to slide from the upper dead point 531 of the slide to the lower dead point 532 of the slide. When the connecting ball head 63 reaches the lower dead point 532 of the slide, the suction process is completed. When the compressor is in the exhaust process, the crankshaft 50 rotates to drive the piston to move upward. At this time, the connecting ball head 63 slides on the slide 53 and starts to slide from the lower dead point 532 of the slide to the upper dead point 531 of the slide. When the connecting ball head 63 reaches the upper dead point 531 of the slide, the exhaust process is completed.

[0074] As Figures 1-9 In a preferred embodiment, the compressor suction path implementation scheme of the present application is a symmetrical half-direct double suction structure. The first suction path is as follows: when the compressor is in the suction process, the tongue spring of the suction valve piece 92 gradually opens. The refrigerant enters the inside of the muffler cavity from the muffler inlet, and then flows out from the muffler outlet in sequence through the suction hole of the exhaust valve piece gasket 95, the suction hole of the exhaust valve piece 93, the suction hole of the valve plate 91, the suction hole of the suction valve piece 92, and the suction hole of the suction valve piece gasket 94 into one of the cylinder bores 41, and the suction process is completed. The second suction path is similar to the first suction path. Finally, the refrigerant enters the other cylinder bore 41.

[0075] The compressor exhaust path implementation scheme of the present application is as follows: when the compressor is in the exhaust process, the tongue spring of the exhaust valve piece 93 gradually opens. At this time, the high-temperature and high-pressure refrigerant is discharged from the two cylinder bores 41 and the cylinder bore 41 and flows in sequence through the exhaust hole of the suction valve piece gasket 94, the exhaust hole of the suction valve piece 92, the exhaust hole of the valve plate 91, the exhaust valve piece 93, the exhaust valve piece gasket 95, and into the cavity of the cylinder head 31 for expansion and sound attenuation. Then, the refrigerant is discharged from the cavity of the cylinder head 31 and flows in sequence through the air hole of the valve plate 91, the air hole of the suction valve piece 92, the air hole of the suction valve piece gasket 94, the exhaust passage inlet (air hole inlet 421) on the cylinder, the exhaust passage outlet (air hole outlet 422), and finally is discharged to the system through the exhaust pipe assembly, and the exhaust process is completed.

[0076] The compressor assembly embodiment of the present application; first, the piston 60 is assembled with the crankshaft 50, the specific embodiment is: the connecting ball head 63 enters the piston assembly slot 54 from the piston assembly inlet 541, and then is installed on the slide way top dead center 531 through the slide way, and the assembly of the piston and the crankshaft is completed. The second step is to assemble the complete crankshaft and the cylinder block by gap fitting the long shaft 51 of the crankshaft with the shaft hole 21. The third step is to install the cylinder hole. The screw hole 44 of the cylinder 40 corresponds to the screw hole 233 on the cylinder block 20, and the piston body 61 is installed in the cylinder hole 411, and the installation of the cylinder hole is completed. The fourth step is to install the cylinder head assembly. The cylinder head 31 is designed with a positioning pin, and the exhaust valve piece gasket 95, the exhaust valve piece 93, the valve plate 91, the intake valve piece 92 and the intake valve piece gasket 94 are respectively designed with positioning holes. When installing, the positioning holes correspond to the positioning pin to complete the installation of the cylinder head assembly. The cylinder head assembly 30 is installed on the cylinder block 20 by the screw 71, and the pump body installation is completed.

[0077] The new compressor structure in the present application includes the structure design of the cylinder head assembly 30, the design of the non- eccentric crankshaft, the design of the short shaft curved surface slide groove of the crankshaft matched with the slide way of the piston connecting head, which solves the problem of increased vibration and noise of the compressor caused by the rotational inertia force and the reciprocating inertia force in the movement process of the traditional refrigerator refrigeration compressor crank connecting rod mechanism, and reduces the vibration and noise of the compressor. On the other hand, the design of the cylinder without crescent groove reduces the risk of oil discharge and the mixing of refrigeration oil and refrigerant of the compressor, and achieves the beneficial effects of improving the refrigeration capacity of the compressor and reducing oil discharge.

[0078] The present application also provides a kind of refrigeration equipment, comprising: the compressor as described in any one of the above embodiments. The refrigeration equipment can be air conditioner, refrigerator, dehumidifier and other devices with refrigeration function.

[0079] It can be further understood that "multiple" in the present disclosure means two or more, and other quantifiers are similar. The association relationship of the associated objects is described, which means that there can be three kinds of relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the associated objects before and after are in an "or" relationship. The singular form of "a", "said" and "the" also includes the plural form, unless the context clearly indicates otherwise.

[0080] It can be further understood that the terms "first", "second" and the like are used to describe various information, but these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not represent a specific order or importance. In fact, "first", "second" and the like can be used interchangeably. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present disclosure.

[0081] It will be further appreciated that embodiments of the present disclosure, although described in certain order of sequences in flowcharts of the drawings, should not be construed to require that the operations be performed in the order or serially, or that all operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing can be advantageous.

[0082] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the concepts disclosed herein. It is intended that the present disclosure cover any and all variations of the present disclosure including combinations of features falling within the general scope of the disclosure. The specification and examples given are intended as illustrative only and not in a limiting sense. The true scope and spirit of the present disclosure should be indicated by the following claims.

[0083] It is to be understood that the present disclosure is not limited to the precise details of design and construction described herein and illustrated in the accompanying drawings. Various modifications and changes can be made thereunto without departing from the scope of the present disclosure. The scope of the present disclosure is limited only by the claims appended hereto.

Claims

1. A compressor characterized by, The compressor comprises: a cylinder base provided with a shaft hole and an exhaust port; a cylinder head assembly arranged on the cylinder base and forming a gas containing cavity with the cylinder base, the cylinder head assembly comprising an air inlet; a cylinder arranged between the cylinder base and the cylinder head assembly, the cylinder being provided with a cylinder hole and a gas passage hole, the cylinder hole and the air inlet being communicated to form an air suction passage, and the cylinder hole and the gas passage hole being communicated through the containing cavity to form an exhaust passage; a valve plate assembly arranged between the cylinder head assembly and the cylinder, the valve plate assembly being used to open or close the air suction passage and the exhaust passage; a crankshaft comprising a long shaft and a short shaft, the long shaft being arranged in the shaft hole, the short shaft being arranged at the end of the long shaft and the axis of the short shaft coinciding with the axis of the long shaft, the top surface of the short shaft being formed as a curved surface structure, and a curved sliding groove being arranged on the curved surface structure, the curved sliding groove having a top dead center and a bottom dead center below the top dead center; a piston comprising a piston body, a connecting head and a piston rod connected between the piston body and the connecting head, the piston body being arranged in the cylinder hole, the connecting head being slidably arranged in the curved sliding groove and being capable of sliding along the curved sliding groove between the top dead center and the bottom dead center to make the piston body reciprocate up and down in the cylinder hole; the curved surface structure is provided with an annular groove, the annular groove forming an annular curved sliding groove, the connecting head is slidably arranged in the annular groove and is matched with the annular groove; an assembly groove is arranged on the curved surface structure and communicated with the annular groove, the assembly groove is formed with an assembly hole, and the assembly hole is used for the connecting head to enter the annular groove through the assembly groove; the cylinder head assembly comprises a cylinder head and a muffler, and the muffler comprises a muffling cavity; the muffling cavity comprises an annular cavity part and a protruding cavity part extending from the annular cavity part towards the radial inner side thereof.

2. The compressor according to claim 1, wherein the cylinder head covers the cylinder base, and the muffler is located between the cylinder head and the cylinder base; the air inlet is formed in the muffling cavity and is communicated with the cylinder hole through the muffling cavity.

3. The compressor according to claim 2, wherein the cylinder head covers the annular cavity part between the cylinder head and the cylinder base, and the protruding cavity part extends into the containing cavity.

4. The compressor according to claim 2, wherein the valve plate assembly comprises a valve plate and an air suction valve plate and an exhaust valve plate arranged on both sides of the valve plate respectively, the valve plate is provided with an air suction hole, an exhaust hole and a communication hole, the air suction hole is communicated with the air suction passage, the exhaust hole is communicated with the exhaust passage, and the communication hole is communicated with the gas passage hole, the air suction valve plate is used to open or close the air suction hole to open or close the air suction passage, and the exhaust valve plate is used to open or close the exhaust hole to open or close the exhaust passage.

5. The compressor according to claim 4, wherein The valve plate assembly further comprises an intake valve plate gasket disposed between the cylinder and the intake valve plate, and an exhaust valve plate gasket disposed between the cylinder head and the exhaust valve plate.

6. The compressor of claim 3, wherein, The cylinder seat comprises a seat body and a cylinder support frame disposed on the seat body, The shaft hole is formed on the seat body, and the exhaust port is formed on the support frame; The cylinder is supported on the cylinder support frame.

7. The compressor of claim 1, wherein, The compressor is a multi-cylinder compressor, and the cylinder head assembly comprises a plurality of intake ports; The intake ports are provided in plurality, and the plurality of intake ports are arranged at intervals, each of the intake ports is in communication with the corresponding intake port to form a plurality of the intake passages, and each of the intake ports is in communication with the vent hole through the containing cavity to form a plurality of the exhaust passages; The valve plate assembly is used to open and close the corresponding intake passage and exhaust passage; The pistons are provided in plurality, and the slide way comprises a plurality of slide ways, the connecting head of each of the pistons is slidingly disposed in the corresponding slide way, and respectively slides along the top dead center and the bottom dead center of the corresponding slide way, so that the plurality of the pistons reciprocate up and down in the corresponding cylinder bore.

8. The compressor of claim 1, wherein, Further comprising: A motor, the motor comprises a stator and a rotor, the rotor is installed on the long shaft of the crankshaft, the stator surrounds the rotor, and the stator is fixed on the cylinder seat of the cylinder head assembly.

9. A refrigeration appliance characterized in that, Comprise: The compressor of any one of claims 1-8.

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