CN113090493B - Totally-enclosed piston refrigeration compressor - Google Patents
Totally-enclosed piston refrigeration compressor Download PDFInfo
- Publication number
- CN113090493B CN113090493B CN202110484093.XA CN202110484093A CN113090493B CN 113090493 B CN113090493 B CN 113090493B CN 202110484093 A CN202110484093 A CN 202110484093A CN 113090493 B CN113090493 B CN 113090493B
- Authority
- CN
- China
- Prior art keywords
- cylinder
- exhaust
- valve plate
- cavity
- cylinder cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0083—Pulsation and noise damping means using blow off silencers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/125—Cylinder heads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The utility model discloses a totally-enclosed piston refrigeration compressor, which comprises a shell, a motor, a crankshaft, a cylinder seat and a cylinder cover, wherein a cylinder is arranged on the cylinder seat, a valve plate assembly is arranged on the end surface of the cylinder, which is far away from the crankshaft, and the cylinder cover is arranged on the other end surface of the valve plate assembly; an exhaust cavity is arranged in the cylinder cover, and an open type air inlet silencer interface is arranged outside the cylinder cover; the exhaust cavity is sleeved with a cylinder cover liner, the cylinder cover liner and the exhaust cavity are both provided with exhaust air outlet holes and are connected to an exhaust buffer cavity through an exhaust connecting pipe, the exhaust buffer cavity is arranged in the shell and is connected with an exhaust coil at the other end, and the exhaust coil extends and is connected to an exhaust pipe on the shell; the refrigerating compressor optimizes the cylinder seat and the cylinder head structure, so that the exhaust heat insulation effect is very good, and the air suction efficiency of the compressor can be improved to finally achieve the purpose of improving the efficiency of the compressor.
Description
Technical Field
The utility model relates to the technical field of refrigeration compressors, in particular to a fully-closed piston refrigeration compressor.
Background
The piston compressor is widely applied to refrigeration equipment, and the compressor drives a crankshaft to rotate through a motor, and then drives a piston to reciprocate through a crankshaft connecting rod so as to change low-temperature low-pressure refrigerant vapor into high-temperature high-pressure refrigerant, so that the refrigeration cycle is formed by repeatedly pushing medium to move. The cylinder block that traditional piston compressor adopted has adopted multicavity structure, including cushion chamber and exhaust chamber, and the structure is comparatively complicated.
Chinese patent (publication No. CN 208749516U) discloses a cylinder block assembly of a piston compressor, a piston compressor and a refrigeration system in 2019, the cylinder block assembly comprising: the cylinder body is provided with a compression cavity and an exhaust channel; and the variable capacity switching mechanism is arranged on the cylinder body and can enable the exhaust passage to be communicated with or disconnected from the compression cavity. The cylinder seat structure on the compressor is complex, and the internal structure of the cylinder is complex, so that a gas channel is required to be arranged for supplying and exhausting.
The cylinder cover in the prior art is mostly made of metal materials, has a complex and single structure, has a certain heat dissipation effect when exhausting at a high temperature, and easily causes local overhigh temperature, so that cold air at the air suction end is heated, the air suction effect is influenced, and the working efficiency of the whole compressor is influenced.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides a fully-closed piston refrigeration compressor.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a totally closed piston refrigeration compressor, includes the casing, casing internally mounted has the motor, be connected with the bent axle on the motor, the bent axle is in with the cylinder block that sets up the motor top is connected, the cylinder block keeps away from the one end of bent axle is equipped with the cylinder head, be equipped with the cylinder on the cylinder block, the cylinder is equipped with the axial and runs through the cylinder bore, the piston cover of bent axle end-to-end connection is established in the cylinder bore, the cylinder is kept away from the terminal surface of bent axle is equipped with the valve plate subassembly, the other terminal surface of valve plate subassembly is equipped with the cylinder head, the valve plate subassembly together with the cylinder head passes through the fastener and fastens on the cylinder; an exhaust cavity is arranged in the cylinder cover, an open type air inlet silencer interface is arranged outside the cylinder cover, the air inlet silencer interface is arranged corresponding to an air inlet hole on the valve plate assembly and is connected with an air inlet silencer, and the exhaust cavity is arranged corresponding to an exhaust hole on the valve plate assembly; the exhaust cavity inner sleeve is provided with a cylinder cover inner container, the cylinder cover inner container and the exhaust cavity are respectively provided with an exhaust air outlet hole and are connected to an exhaust buffer cavity through an exhaust connecting pipe, the exhaust buffer cavity is arranged in the shell and is connected with an exhaust coil at the other end, and the exhaust coil extends and is connected to an exhaust pipe on the shell.
The air cylinder seat and the cylinder head structure of the refrigeration compressor are optimized, so that the exhaust heat insulation effect is very good, the air suction efficiency of the compressor can be improved to finally reach the aim of improving the efficiency of the compressor, the structure is simpler, more compact and reasonable, the cost of materials, processing and installation is lower, the economic effect is better, and the refrigeration compressor is suitable for production and assembly of the fully-closed piston type refrigeration compressor.
The cylinder head liner made of plastic is embedded in the cylinder head, so that high-temperature and high-pressure gas entering the cylinder head is isolated in the plastic layer of the cylinder head liner, heat transfer to the outside is reduced, the temperature of gas at the air suction end in the shell is not heated, and meanwhile, the air suction overheat can be further reduced by adopting the cylinder head combined with the air suction cavity and having an open structure, thereby improving the air suction efficiency of the compressor, and the efficiency of the whole compressor is obviously improved by increasing the air suction efficiency and optimizing the air discharge path.
Meanwhile, the heat insulation cavity is formed by the arrangement of the cylinder cover liner, gas can be buffered and silenced in the cavity, high-temperature exhaust noise is reduced, direct impact of air flow on the cylinder cover is reduced, and the whole stability is better. The exhaust buffer chamber can further buffer the air flow and reduce the noise of the air flow, so that the noise of the air discharged out of the shell is very small.
The exhaust cavity is arranged in the cylinder cover and the exhaust buffer cavity is independently arranged, so that the structure of the cylinder seat is greatly simplified, and the cylinder seat is lower in manufacturing cost unlike various exhaust cavities and buffer cavities which are required to be arranged on the cylinder seat in the prior art; the structure of the cylinder is also very simple, and one cylinder hole is arranged to accommodate the piston.
Further, the cylinder hole is a smooth inner hole, the cylinder is integrally formed on the cylinder seat, a pair of connecting holes are symmetrically formed on the bulge structures on two sides of the cylinder, a pair of connecting holes are also formed on the valve plate assembly and the cylinder cover respectively, and two fastening pieces are respectively arranged in the connecting holes for fastening.
Through the arrangement of the structure, the cylinder is basically of a cylindrical structure, only connecting holes are arranged on two sides of the cylinder, the cylinder is connected through two fasteners, the valve plate assembly is the same as the cylinder cover, and the cylinder is connected through two fasteners; therefore, the occupied area of the air cylinder can be reduced, and the compressor is beneficial to miniaturization design.
Further, an outer wrapping structure is arranged at the end part of the cylinder cover, the outer wrapping structure is sleeved on the periphery of the valve plate assembly and the periphery of the end part of the cylinder, and two end surfaces of the valve plate assembly are respectively abutted against the end surface of the cylinder and the inner end surface of the cylinder cover; the outer wrapping structure is provided with an opening at the joint of the air inlet silencer.
The outer wrapping structure extends the outer contour of the end part of the cylinder cover, so that the outer wrapping structure can better cover the valve plate assembly and is connected with the cylinder; when the cylinder cover is assembled, the cylinder cover can be directly sleeved and pre-connected, so that the subsequent screwing and fastening operation is facilitated; the outer wrapping structure and the cylinder cover are of an open structure, so that the lower part is convenient to connect and install the air inlet silencer.
Further, the inner peripheral surface of the exhaust cavity is of an arc-shaped structure, and is of a wavy structure near two sides and below, and the exhaust air outlet is arranged at the arc-shaped structure; and two sides of the exhaust cavity close to the lower part are provided with limiting clamping grooves for clamping and fixing the cylinder cover liner.
The arrangement of the structure is convenient for corresponding to the position of the exhaust valve plate on the valve plate assembly, and is convenient for air flow to directly enter the exhaust cavity from the exhaust hole; the limiting clamping grooves are used for fixedly clamping the two side wings of the cylinder cover liner, so that the cylinder cover liner is clamped stably and firmly and cannot rotate or shake in the exhaust cavity.
Further, the outline shape of the outer peripheral surface of the cylinder cover liner is consistent with that of the inner peripheral surface of the exhaust cavity, and the cylinder cover liner is embedded in the exhaust cavity; the cylinder cover liner is characterized by further comprising an inner cavity, an axial exhaust limiting plate is arranged in the inner cavity, a distance is kept between the exhaust limiting plate and the inner upper peripheral surface of the inner cavity, and the exhaust limiting plate is arranged on one side far away from the exhaust air outlet.
The matching arrangement of the inner contour and the outer contour is convenient for installation and positioning; the exhaust limiting plate divides the inner cavity into two communicated cavities with different sizes, which is beneficial to buffering and noise reduction of high-temperature air flow.
Furthermore, muffler fixing grooves are formed in two sides of the inlet muffler interface, and the outlet end of the inlet muffler is clamped and fixed in the muffler fixing grooves; the intake silencer is installed below the inside of the housing and connected with the outside through an intake pipe.
Further, the cylinder cover liner, the exhaust connecting pipe and the exhaust coil pipe are all plastic structural members, and the plastic materials comprise one or more of high-temperature nylon, polyether ether ketone, polyether ketone, polyphenyl ether ketone, polytetrafluoroethylene and the like; the use of plastic materials can reduce heat exchange; the exhaust buffer cavity is an independent installation component and is arranged on one side close to the cylinder cover.
The arrangement of the exhaust buffer cavities which are independently arranged can simplify the structure of the cylinder seat and facilitate the independent replacement of the exhaust buffer cavities.
Further, the outer contour shape of the valve plate assembly is one of the outer contour shape of the cylinder end, and the outer peripheral dimension of the valve plate assembly is larger than the radial dimension of the cylinder hole and not larger than the outer peripheral dimension of the cylinder end; the valve plate assembly comprises a valve plate, and an air suction valve plate and an air discharge valve plate which are positioned on two sides of the valve plate, and a cylinder cover plate is arranged between the valve plate assembly and the inner end surface of the cylinder cover.
The cover plate of the cylinder cover is a flat plate, the shape and the outline of the cover plate are the same as the end face structure of the cylinder cover liner, the exhaust limiting plate is closed, and only the other side channel is reserved. The cylinder cover plate is arranged to adjust the assembly clearance on one hand, ensure the sealing effect of the assembly end face, and play a role in blocking and adjusting air flow on the other hand.
Further, the cylinder seat comprises a crankshaft mounting part connected with the crankshaft, four extending parts are arranged on the periphery of the crankshaft mounting part, mounting and fixing parts are respectively arranged below the extending parts, and the cylinder is arranged between a pair of extending parts and the crankshaft mounting part; the central axis of the cylinder is arranged vertically to the central axis space of the crankshaft installation part. The outer peripheral structure of the cylinder block is simplified, and only the part for mounting and fixing is required.
Further, the paths of the gas exhaust runners are in turn: the air in the compression cavity of the air cylinder enters the cylinder head liner in the cylinder head through the exhaust hole on the valve plate assembly, the air is silenced in the cylinder head liner and then is discharged into the exhaust buffer cavity through the exhaust connecting pipe, and the air enters the refrigerator system through the exhaust coil pipe and the exhaust pipe on the shell after being silenced and buffered in the exhaust buffer cavity.
The arrangement of the path is matched with the cylinder head liner, the exhaust connecting pipe and the exhaust coil pipe which are made of plastic materials, the heat exchange of high-temperature exhaust gas is smaller in the path, the high-temperature gas can be directly discharged out of the shell, particularly, the position of the cylinder head can not cause local overhigh temperature, the temperature in the whole compressor shell is in a controllable low-temperature range, and the efficiency and noise problems of the improved compressor through the exhaust are improved.
Compared with the prior art, the utility model has the beneficial effects that: 1. the refrigeration compressor optimizes the cylinder seat and the cylinder head structure, so that the exhaust heat insulation effect is very good, the air suction efficiency of the compressor can be improved to finally achieve the aim of improving the efficiency of the compressor, the structure is simpler, more compact and reasonable, the cost of materials, processing and installation is lower, the economic effect is better, and the refrigeration compressor is suitable for the production and the assembly of the fully-closed piston type refrigeration compressor; 2. the cylinder head liner made of plastic is embedded in the cylinder head, so that heat transfer to the outside is reduced, the temperature of gas at the air suction end in the shell is not heated, and meanwhile, the air suction overheat can be further reduced by adopting the cylinder head combined with the air suction cavity and having an open structure, so that the air suction efficiency of the compressor is improved, and the efficiency of the whole compressor is obviously improved by increasing the air suction efficiency and optimizing the air discharge path; 3. the arrangement of the cylinder cover liner not only forms a heat insulation cavity, but also can buffer and mute gas in the cavity, reduces the noise of high-temperature exhaust, reduces the direct impact of air flow on the cylinder cover, and has better whole stability; 4. the exhaust cavity is arranged in the cylinder cover and the exhaust buffer cavity is independently arranged, so that the structure of the cylinder seat is greatly simplified, and the manufacturing cost of the cylinder seat is lower; the construction of the cylinder is also very simple and the use of fasteners is reduced.
Drawings
FIG. 1 is an overall schematic diagram of a fully enclosed piston refrigeration compressor according to the present utility model;
FIG. 2 is a schematic top view of a fully enclosed piston refrigeration compressor according to the present utility model;
FIG. 3 is a schematic view of the internal structure of a fully closed piston refrigeration compressor according to the present utility model;
FIG. 4 is a schematic view of a cylinder block of a fully closed piston refrigeration compressor according to the present utility model;
FIG. 5 is a schematic view of a cylinder head connection structure of a fully closed piston refrigeration compressor according to the present utility model;
FIG. 6 is an exploded view of a cylinder head and valve plate assembly of a fully enclosed piston refrigeration compressor of the present utility model;
FIG. 7 is a schematic diagram of a cylinder head and valve plate assembly combination of a fully enclosed piston refrigeration compressor of the present utility model;
in the figure: 1. a housing; 2. a motor; 3. a crankshaft; 4. a cylinder block; 401. a crankshaft mounting portion; 402. an extension; 403. a mounting and fixing part; 5. a cylinder; 501. a cylinder bore; 6. a cylinder head; 601. an exhaust chamber; 602. exhaust outlet holes of the cylinder cover; 603. an outsourcing structure; 604. an intake silencer interface; 605. a limit clamping groove; 7. an exhaust connection pipe; 8. an exhaust buffer chamber; 9. an exhaust coil; 10. an intake silencer; 11. a piston; 12. a connection hole; 13. a cylinder head liner; 1301. an exhaust limiting plate; 1302. an exhaust outlet hole of the liner; 14. a fastener; 15. a valve plate assembly; 16. a cylinder head cover plate.
Detailed Description
The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on embodiments of the present utility model, are within the scope of the present utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 7, a fully-closed piston refrigeration compressor comprises a shell 1, wherein a motor 2 is installed in the shell 1, a crankshaft 3 is connected to the motor 2, the crankshaft 3 is connected with a cylinder seat 4 arranged above the motor 2, one end of the cylinder seat 4, which is far away from the crankshaft 3, is provided with a cylinder cover 6, the cylinder seat 4 is provided with a cylinder 5, the cylinder 5 is provided with an axial penetrating cylinder hole 501, a piston 11 connected with the tail end of the crankshaft 3 through a crank is sleeved in the cylinder hole 501, the end surface of the cylinder 5, which is far away from the crankshaft 3, is provided with a valve plate assembly 15, the other end surface of the valve plate assembly 15 is provided with the cylinder cover 6, and the valve plate assembly 15 and the cylinder cover 6 are fastened on the cylinder 5 together through a fastener 14; an exhaust cavity 601 is arranged in the cylinder cover 6, an open type air inlet silencer interface 604 is arranged outside the cylinder cover 6, the air inlet silencer interface 604 is arranged corresponding to an air inlet hole on the valve plate assembly 15 and is connected with an air inlet silencer 10, and the exhaust cavity 601 is arranged corresponding to an exhaust hole on the valve plate assembly 15; the exhaust cavity 601 is sleeved with a cylinder head liner 13, the cylinder head liner 13 and the exhaust cavity 601 are respectively provided with an exhaust outlet (comprising a cylinder head exhaust outlet 602 and a liner exhaust outlet 1302 which are in one-to-one correspondence) and are connected to an exhaust buffer cavity 8 through an exhaust connecting pipe 7, the exhaust buffer cavity 8 is arranged in the shell 1 and is connected with an exhaust coil 9 at the other end, and the exhaust coil 9 extends and is connected to an exhaust pipe on the shell 1.
The refrigerating compressor optimizes the structure of the cylinder seat 4 and the cylinder head 6, has very good exhaust heat insulation effect, can improve the air suction efficiency of the compressor, finally reaches the aim of improving the efficiency of the compressor, has simpler, more compact and reasonable structure, lower material, processing and mounting cost and better economic effect, and is suitable for the production and assembly of the totally-enclosed piston refrigerating compressor.
The cylinder head liner 13 made of plastic is embedded in the cylinder head 6, so that high-temperature and high-pressure gas entering the cylinder head 6 is isolated in the plastic layer of the cylinder head liner 13, heat transfer to the outside is reduced, the temperature of gas at the air suction end in the shell 1 is not heated, and meanwhile, the air suction overheat can be further reduced by combining the air suction cavity with the open structure cylinder head 6, so that the air suction efficiency of the compressor is improved, and the efficiency of the whole compressor is obviously improved by increasing the air suction efficiency and optimizing the air discharge path.
Meanwhile, the arrangement of the cylinder cover liner 13 not only forms a heat insulation cavity, but also can buffer and mute gas in the cavity, reduces high-temperature exhaust noise, reduces direct impact of air flow on the cylinder cover, and has better whole stability. The exhaust buffer chamber 8 can further buffer the air flow and reduce the noise of the air flow, so that the noise of the air discharged out of the housing 1 is also very small.
The exhaust cavity 601 is arranged in the cylinder cover 6 and the exhaust buffer cavity 8 is independently arranged, so that the structure of the cylinder seat 4 is greatly simplified, and the manufacturing cost of the cylinder seat 4 is lower unlike the prior art that various exhaust cavities and buffer cavities are required to be arranged on the cylinder seat 4; the structure of the cylinder 5 is also very simple and one cylinder bore 501 is provided to accommodate the piston.
Further, the cylinder hole 501 is a smooth inner hole, the cylinder 5 is integrally formed on the cylinder seat 4, a pair of connecting holes 12 are symmetrically formed on the bump structures on two sides of the cylinder 5, a pair of connecting holes are also respectively formed on the valve plate assembly 15 and the cylinder head 6, and two fastening pieces 14 are respectively arranged in the connecting holes 12 for fastening.
By the arrangement of the structure, the cylinder 5 is basically in a cylindrical structure, only the two sides are required to be provided with the connecting holes 12, the two fastening pieces 14 are used for connecting, the valve plate assembly 15 is the same as the cylinder cover 6, and only two fastening pieces are required to be shared for connecting; therefore, the occupied area of the air cylinder can be reduced, and the compressor is beneficial to miniaturization design.
Further, an outer packing structure 603 is arranged at the end part of the cylinder cover 6, the outer packing structure 603 is sleeved on the periphery of the valve plate assembly 15 and the periphery of the end part of the cylinder 5, and two end surfaces of the valve plate assembly 15 are respectively abutted against the end surface of the cylinder 5 and the inner end surface of the cylinder cover 6; the outer cover 603 is provided with an opening at (below) the inlet silencer interface 604.
The outer cover structure 603 is that the outer contour of the end of the cylinder head 6 extends so as to better cover the valve plate assembly 15 and connect with the cylinder 5; the cylinder cover 6 can be directly sleeved on the cylinder cover during assembly, so that the subsequent screwing and fastening operation is facilitated; the outer cover structure 603 and the cylinder head 6 are both open structures, so that the intake silencer 10 can be conveniently connected and installed below.
Further, the inner peripheral surface of the exhaust cavity 601 has an arc-shaped structure near the upper part and a wavy structure near the two sides and below, and the exhaust and air outlet 602 of the cylinder cover is arranged at the arc-shaped structure; two sides of the exhaust cavity 601 close to the lower part are provided with limit clamping grooves 605 for clamping and fixing a pair of side wings of the cylinder head liner 13.
The arrangement of the structure is convenient to correspond to the position of the exhaust valve plate on the valve plate assembly 15, so that air flow can directly enter the exhaust cavity 601 from the exhaust hole; the limiting and clamping grooves 605 are used for fixedly clamping the two side wings of the cylinder head liner 13, so that the cylinder head liner 13 is clamped stably and firmly and cannot rotate or shake in the exhaust cavity 601.
Further, the outer circumferential surface of the cylinder head liner 13 is in the same shape as the outline of the inner circumferential surface of the exhaust cavity 601, and the cylinder head liner 13 is embedded in the exhaust cavity 601; the cylinder head liner 13 is further provided with an inner cavity, an axial exhaust limiting plate 1301 is arranged in the inner cavity, a distance is kept between the exhaust limiting plate 1301 and the inner upper peripheral surface of the inner cavity, and the exhaust limiting plate 1301 is arranged on one side far away from the liner exhaust outlet 1302.
The matching arrangement of the inner contour and the outer contour is convenient for installation and positioning; the exhaust limiting plate 1301 divides the inner cavity into two communicated cavities with different sizes, which is beneficial to buffering and noise reduction of high-temperature air flow.
Further, muffler fixing grooves are formed on two sides of the inlet muffler interface 604, and the outlet end of the inlet muffler 10 is fastened and fixed in the muffler fixing grooves; the intake silencer 10 is installed below the inside of the housing 1 and is connected to the outside through an intake pipe.
Furthermore, the cylinder cover liner 13, the exhaust connecting pipe 7 and the exhaust coil 9 are all made of plastic structural members, and heat exchange can be reduced by using the plastic; the exhaust buffer chamber 8 is an independent installation component, is also a plastic material piece, and is arranged at one side close to the cylinder cover 6.
The provision of the independently arranged exhaust buffer chambers 8 not only simplifies the structure of the cylinder block 4, but also facilitates the independent replacement of the exhaust buffer chambers 8.
Further, the outer contour shape of the valve plate assembly 15 is one of the outer contour shape of the end of the cylinder 5, and the outer peripheral dimension of the valve plate assembly 15 is substantially the same as the end dimension of the cylinder 5; the valve plate assembly 15 comprises a valve plate, and an air suction valve plate and an air discharge valve plate which are positioned at two sides of the valve plate, and a cylinder head cover plate 16 is further arranged between the valve plate assembly 15 and the inner end surface of the cylinder head 6.
The cylinder cover plate 16 is a flat plate, the shape and the outline of the cylinder cover plate are the same as those of the end face structure of the cylinder cover liner 13, the position corresponding to the exhaust limiting plate 1301 is closed, and only the other side channel is reserved. The provision of the cylinder head cover 16 serves on the one hand to adjust the assembly gap, ensure the sealing effect of the assembly end face, and on the other hand to block and regulate the air flow.
Further, the cylinder block 4 includes a crankshaft mounting portion 401 connected to the crankshaft 3, four extension portions 402 are provided on an outer periphery of the crankshaft mounting portion 401, and mounting fixing portions 403 are provided below the extension portions 402, respectively, wherein the cylinder 5 is provided between a pair of the extension portions 402 and the crankshaft mounting portion 401; the central axis of the cylinder 5 is spatially perpendicular to the central axis of the crankshaft mounting portion 401. The outer peripheral structure of the cylinder block 4 is simplified, and only a portion for mounting and fixing is required.
Further, the paths of the gas exhaust runners are in turn: the gas in the compression cavity of the cylinder 5 enters the cylinder head liner 13 in the cylinder head 6 through the exhaust hole on the valve plate assembly 15, the gas is discharged into the exhaust buffer cavity 8 through the exhaust connecting pipe 7 after heat insulation and noise reduction in the cylinder head liner 13, and the gas enters the refrigerator system through the exhaust coil 9 and the exhaust pipe on the shell 1 after noise reduction and buffering in the exhaust buffer cavity 8.
The arrangement of this path, in combination with the cylinder head liner 13, the exhaust connection pipe 7 and the exhaust coil 9, of plastic material, makes it possible to discharge the high-temperature exhaust gas directly outside the casing 1, in particular at the cylinder head 6, without causing local excessive temperatures, and the temperature inside the whole compressor casing is in a controllable low temperature range, with which the efficiency and noise problems of the compressor are improved.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a totally closed piston refrigeration compressor, includes the casing, casing internally mounted has the motor, be connected with the bent axle on the motor, the bent axle is in with the cylinder block that sets up the motor top is connected, the cylinder block keeps away from the one end of bent axle is equipped with the cylinder head, its characterized in that, be equipped with the cylinder on the cylinder block, the cylinder is equipped with the axial and runs through the cylinder hole, the piston cover of bent axle end-to-end connection is established in the cylinder hole, the cylinder is kept away from the terminal surface of bent axle is equipped with the valve plate subassembly, the other terminal surface of valve plate subassembly is equipped with the cylinder head, the valve plate subassembly together with the cylinder head passes through the fastener and fastens on the cylinder; an exhaust cavity is arranged in the cylinder cover, an open type air inlet silencer interface is arranged outside the cylinder cover, the air inlet silencer interface is arranged corresponding to an air inlet hole on the valve plate assembly and is connected with an air inlet silencer, and the exhaust cavity is arranged corresponding to an exhaust hole on the valve plate assembly; the end part of the cylinder cover is provided with an outer wrapping structure, the outer wrapping structure is sleeved on the periphery of the valve plate assembly and the periphery of the end part of the cylinder, two end surfaces of the valve plate assembly are respectively abutted against the end surface of the cylinder and the inner end surface of the cylinder cover, and the outer wrapping structure extends to the outer contour of the end part of the cylinder cover, covers the valve plate assembly and is connected with the cylinder; the cylinder cover and the outer wrapping structure are provided with openings at the joint of the air inlet silencer; the exhaust cavity is sleeved with a cylinder cover liner, the cylinder cover liner and the exhaust cavity are both provided with exhaust air outlet holes and are connected to an exhaust buffer cavity through an exhaust connecting pipe, the exhaust buffer cavity is arranged in the shell and is connected with an exhaust coil at the other end, and the exhaust coil extends and is connected to an exhaust pipe on the shell;
the valve plate assembly comprises a valve plate, an air suction valve plate and an air discharge valve plate which are positioned on two sides of the valve plate, a cylinder cover plate is further arranged between the valve plate assembly and the inner end face of the cylinder cover, the cylinder cover plate is a flat plate, the shape and the outline of the cylinder cover plate are identical to those of the end face structure of the cylinder cover liner, and the air discharge limiting plate corresponding to the cylinder cover liner is closed and only a channel on the other side is reserved.
2. The fully-closed piston refrigeration compressor as set forth in claim 1, wherein said cylinder bore is a smooth inner bore, said cylinder is integrally formed on said cylinder block, a pair of connecting bores are symmetrically provided on the boss structure on both sides of said cylinder, a pair of connecting bores are also provided on said valve plate assembly and said cylinder head, respectively, and two of said fasteners are provided in said connecting bores, respectively, for fastening.
3. The fully-closed piston refrigeration compressor as set forth in claim 1, wherein said exhaust chamber has an upper arcuate configuration and a lower and two-sided wavy configuration on an inner peripheral surface thereof, said exhaust outlet being provided at the arcuate configuration; and two sides of the exhaust cavity close to the lower part are provided with limiting clamping grooves for clamping and fixing the cylinder cover liner.
4. The fully-closed piston refrigeration compressor as set forth in claim 1, wherein the outer peripheral surface of said cylinder head liner conforms to the contour shape of the inner peripheral surface of said exhaust chamber, said cylinder head liner being embedded in said exhaust chamber; the cylinder cover liner is characterized by further comprising an inner cavity, an axial exhaust limiting plate is arranged in the inner cavity, a distance is kept between the exhaust limiting plate and the inner upper peripheral surface of the inner cavity, and the exhaust limiting plate is arranged on one side far away from the exhaust air outlet.
5. The fully-closed piston refrigeration compressor as set forth in claim 1, wherein muffler fixing grooves are provided on both sides of said inlet muffler interface, and said outlet end of said inlet muffler is snap-fitted and fixed in said muffler fixing grooves; the intake silencer is installed below the inside of the housing and connected with the outside through an intake pipe.
6. The fully-closed piston refrigeration compressor of claim 1, wherein the cylinder head liner, the exhaust connection pipe and the exhaust coil are all plastic structural members, and the plastic material comprises one or more of high-temperature nylon, polyether-ether-ketone, polyether-ketone, polyphenylene-oxide-ketone and polytetrafluoroethylene; the exhaust buffer cavity is an independent installation component and is arranged on one side close to the cylinder cover.
7. The fully-closed piston refrigeration compressor as set forth in claim 1 wherein said valve plate assembly has an outer contour shape conforming to an outer contour shape of said cylinder end, an outer peripheral dimension of said valve plate assembly being greater than a radial dimension of said cylinder bore and not greater than an outer peripheral dimension of said cylinder end.
8. The fully-closed piston refrigeration compressor as set forth in claim 1, wherein said cylinder block includes a crankshaft mounting portion connected to said crankshaft, four extension portions being provided at an outer periphery of said crankshaft mounting portion, mounting fixing portions being provided below said extension portions, respectively, wherein said cylinder is provided between a pair of said extension portions and said crankshaft mounting portion; the central axis of the cylinder is arranged vertically to the central axis space of the crankshaft installation part.
9. The fully-enclosed piston refrigeration compressor of claim 1 wherein the path of the gas discharge flow path is, in order: the air in the compression cavity of the air cylinder enters the cylinder head liner in the cylinder head through the exhaust hole on the valve plate assembly, the air is discharged into the exhaust buffer cavity through the exhaust connecting pipe after heat insulation and noise reduction in the cylinder head liner, and the air enters the refrigerator system through the exhaust coil pipe and the exhaust pipe on the shell after noise reduction and buffering in the exhaust buffer cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110484093.XA CN113090493B (en) | 2021-04-30 | 2021-04-30 | Totally-enclosed piston refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110484093.XA CN113090493B (en) | 2021-04-30 | 2021-04-30 | Totally-enclosed piston refrigeration compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113090493A CN113090493A (en) | 2021-07-09 |
| CN113090493B true CN113090493B (en) | 2023-07-18 |
Family
ID=76681126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110484093.XA Active CN113090493B (en) | 2021-04-30 | 2021-04-30 | Totally-enclosed piston refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113090493B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263723B (en) * | 2022-08-25 | 2024-01-30 | 瑞立集团瑞安汽车零部件有限公司 | Cylinder body, air compressor and commercial vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1059201A (en) * | 1964-10-31 | 1967-02-15 | Gen Motors France | Cylinder block assemblies for reciprocatory compressors |
| CN106163777A (en) * | 2014-03-19 | 2016-11-23 | 大陆轮胎德国有限公司 | For device inflatable articles being sealed and inflating |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT10393U1 (en) * | 2007-12-27 | 2009-02-15 | Acc Austria Gmbh | REFRIGERANT COMPRESSOR |
| WO2013182408A1 (en) * | 2012-06-06 | 2013-12-12 | Arcelik Anonim Sirketi | A compressor comprising a cylinder head |
| WO2014122931A1 (en) * | 2013-02-07 | 2014-08-14 | パナソニック株式会社 | Sealed compressor and refrigerating apparatus |
| CN103790800B (en) * | 2014-01-22 | 2016-03-09 | 李健宝 | Tire for vehicles double-cylinder inflating pump |
| CN204900204U (en) * | 2015-09-14 | 2015-12-23 | 东贝机电（江苏）有限公司 | Compressor's coil set spare |
| CN206338170U (en) * | 2016-12-30 | 2017-07-18 | 浙江麦迪制冷科技股份有限公司 | A kind of refrigeration compressor cylinder block |
| CN107701401A (en) * | 2017-10-11 | 2018-02-16 | 黄石东贝电器股份有限公司 | Cylinder assembly, cylinder and compressor |
| CN108278191B (en) * | 2017-12-20 | 2019-06-04 | 广州万宝集团压缩机有限公司 | A kind of refrigeration compressor |
| CN109441776A (en) * | 2018-12-11 | 2019-03-08 | 芜湖欧宝机电有限公司 | Detachable fission high-efficient compressor cylinder block and its assembly method |
| CN109653994A (en) * | 2018-12-11 | 2019-04-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Head fixing device, compressor and the refrigeration equipment of compressor |
| CN212803529U (en) * | 2020-07-13 | 2021-03-26 | 黄石东贝电器股份有限公司 | Cylinder cover of refrigerator compressor |
-
2021
- 2021-04-30 CN CN202110484093.XA patent/CN113090493B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1059201A (en) * | 1964-10-31 | 1967-02-15 | Gen Motors France | Cylinder block assemblies for reciprocatory compressors |
| CN106163777A (en) * | 2014-03-19 | 2016-11-23 | 大陆轮胎德国有限公司 | For device inflatable articles being sealed and inflating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113090493A (en) | 2021-07-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8257061B2 (en) | Hermetic compressor with internal thermal insulation | |
| KR0143182B1 (en) | Compressor | |
| US5733108A (en) | Hermetic refrigeration compressor | |
| CN113090493B (en) | Totally-enclosed piston refrigeration compressor | |
| CA2537150C (en) | Compact compressor | |
| CN100434696C (en) | Reciprocating piston compressor for trans-critical CO2 refrigeration cycle | |
| CN117145725A (en) | Direct current linear compressor | |
| US6345965B1 (en) | Dual stage compressor | |
| CN208564994U (en) | A kind of totally-enclosed second vapor injection two-cylinder piston refrigeration compressor | |
| CN2490332Y (en) | Suction-exhaust mechanism of cylinder for compressor | |
| CN208330653U (en) | The totally-enclosed single cylinder piston refrigeration compressor of second vapor injection | |
| CN211924398U (en) | Two-stage refrigeration refrigerator compressor | |
| CN208330648U (en) | A kind of open-type single cylinder piston refrigeration compressor of second vapor injection | |
| CN111396313A (en) | Air conditioner, compressor assembly, compressor and pump body unit thereof | |
| CN208330647U (en) | A kind of open-type second vapor injection two-cylinder piston refrigeration compressor | |
| CN206409365U (en) | A kind of freezer compressor crankcase structure | |
| CN212318295U (en) | Air conditioner, compressor assembly, compressor and pump body unit thereof | |
| CN108331733A (en) | A kind of open-type second vapor injection two-cylinder piston refrigeration compressor | |
| JP2848418B2 (en) | Hermetic electric compressor | |
| JPH04129886U (en) | Variable capacity rocking plate compressor | |
| CN217055527U (en) | Compressor and refrigeration plant | |
| CN108506185A (en) | The totally-enclosed single cylinder piston refrigeration compressor of second vapor injection | |
| CN208330652U (en) | A kind of semiclosed second vapor injection two-cylinder piston refrigeration compressor | |
| CN221033118U (en) | Compressor and refrigeration equipment | |
| CN112413176B (en) | Rotary valve mechanism and cryocooler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |