CN209083480U

CN209083480U - A kind of frequency conversion refrigerator compressor

Info

Publication number: CN209083480U
Application number: CN201821642520.2U
Authority: CN
Inventors: 杨晋
Original assignee: Sichuan Danfu Environment Technology Co Ltd
Current assignee: Sichuan Danfu Environment Technology Co Ltd
Priority date: 2018-10-10
Filing date: 2018-10-10
Publication date: 2019-07-09
Anticipated expiration: 2028-10-10

Abstract

The utility model discloses a kind of frequency conversion refrigerator compressors, comprising: shell, base, compression mechanism, valve train, draw socket, motor, controller；The base is fixedly connected on the bottom of shell；The compression mechanism and valve train are placed in enclosure interior；Oil duct is equipped with inside the compression mechanism；The oil duct lower part is equipped with the oil pipe being connected to the oil duct, using the frequency conversion refrigerator compressor, can be avoided motor speed it is low when upper oil mass the case where reducing, it reduces because of the inadequate bring noise of lubricity, simultaneously, base, motor axial height are also reduced, thus vibration and noise caused by the beat and beat when effectively reducing rotor operation.

Description

A kind of frequency conversion refrigerator compressor

Technical field

The utility model relates to freezer compressor technical fields, more particularly to a kind of frequency conversion refrigerator compressor.

Background technique

Compressor is the driven fluid machinery that low-pressure gas is promoted to high pressure gas, is the heart of refrigeration system, it From the refrigerant gas of air intake duct sucking low-temp low-pressure, operated by motor after being compressed with piston to it, to exhaust pipe Be discharged high temperature and pressure refrigerant gas, provide power for refrigeration cycle, thus realize compression → condensation (heat release) → expansion → The refrigeration cycle of (heat absorption) is evaporated, common compressor has piston compressor, helical-lobe compressor, centrifugal compressor, straight line Compressor etc..

Currently, domestic refrigerator and cooler compressor are all positive displacements, including reciprocating, rotary, piston type pressure Contracting machine uses piston, crankshaft, link mechanism or piston, crankshaft, slip pipe mechanism, piston, crankshaft, link mechanism it is reciprocating Compressor is to be rotated by motor driven crankshafts, to drive link mechanism rotation that piston is pulled to do reciprocal pressure movement, reaches pressure The purpose of contracting cylinder interior gas, it is normal reciprocal for piston, it usually needs lubricating oil, the importing of lubricating oil are imported on piston Principle are as follows: oil guide groove is equipped on crankshaft, crank rotation is simultaneously mobile to cylinder outside with piston, and the rotation of crankshaft generates centrifugation The suction generated is moved outside power and piston makes lubricating oil due to forming upward pressure, and squeezes into cylinder, so that significant portion Lubricating oil be pressed into the surface of piston only, piston only is formed and is lubricated.

Currently, small-sized determines frequency piston compressor, the rotational frequency of crankshaft is certain, and upper oil mass is just stable, and for becoming For frequency compressor, due to the rotation speed change of its crankshaft, oil mass is constantly changing on centrifugal force, and at the low rotational speed, upper oil mass subtracts It is few, it is bad to piston and steam-cylinder lubrication, it causes to wear, meanwhile, slow-speed of revolution lower piston formula vibration of compressor is larger, and turns when in height There is a problem of that noise is larger when fast again.

Summary of the invention

The utility model is mainly solving the technical problems that provide a kind of frequency conversion refrigerator compressor, to solve current frequency conversion Upper low on fuel, worn piston in piston compressor, and cause vibration of compressor larger, noise is larger when compressor operating The problem of.

To achieve the above object, the technical solution that the utility model uses is: a kind of frequency conversion refrigerator compressor is provided, It include: shell, base, valve train, draw socket, controller；The base is fixedly connected on the bottom of shell；The frequency conversion Freezer compressor further includes motor, the compression mechanism being connected to motor；The compression mechanism, valve train, motor are placed in shell Internal portion, and the motor is placed in lower part of the housing；Oil duct is equipped with inside the compression mechanism；The oil duct lower part be equipped with it is described The oil pipe of oil duct connection.

Further, the position of the draw socket is lower than the motor height.

Further, the shell includes upper housing and lower case；The upper housing and lower case are tight using interference fit It is solidly connected.

Further, the bottom of the compression mechanism is additionally provided with the oil pump being connected to the oil pipe.

Further, the motor includes: the bearing column being connected in shell bottom, the rotor being fixed in bearing column, sets In rotor exterior stator, be connected electrically in the lead of stator lower end.

Further, the stator lower part is connected with spring bolt.

Further, draw socket is additionally provided on the side wall of the shell；The lead is connected in draw socket.

Further, the compression mechanism includes: the support frame connecting with inner walls, fixed gas on the support frame Cylinder, crankshaft, the connecting rod for being rotatably connected on crankshaft upper end, the piston being fixedly connected with connecting rod；The piston is slidably arranged in cylinder It is interior；The crankshaft is connected on the rotor.

Further, the valve train includes: the inlet valve being fixed on the cylinder and exhaust valve, sealing connects respectively It connects in inlet valve and two valve decks on exhaust valve, the exhaust pipe that is connected on exhaust valve.

Further, air intake duct is communicated on the inlet valve；The air intake duct is fixed on the housing.

The beneficial effects of the utility model are: being made by the way that the crankshaft in compression mechanism is connected on the rotor on motor The connection of compression mechanism and motor is more compact, while realizing connection, has shortened the length of crankshaft, to make oil duct distance contracting It is short, avoid motor speed it is low when upper oil mass the case where reducing, reduce because of the inadequate bring noise of lubricity, meanwhile, Base, motor axial height are also reduced, to vibrate and make an uproar caused by the beat and beat when effectively reducing rotor operation Sound.

Detailed description of the invention

Fig. 1 is frequency conversion refrigerator compressor overall structure of the explosion figure provided by the utility model.

Appended drawing reference: 1- shell, 2- base, 3- compression mechanism, 4- valve train, 5- draw socket, 6- motor, 7- control Device, 9- oil duct, 10- oil pipe, 11- air intake duct, 61- bearing column, 63- rotor, 62- stator, 64- lead, 31- support frame, 32- gas Cylinder, 33- crankshaft, 34- connecting rod, 35- piston, 41- intake valve, 42- exhaust valve, 43- valve deck, 44- exhaust pipe, 61- bearing column, 63- rotor, 62- stator, 64- lead.

Specific embodiment

The technical solution of frequency conversion refrigerator compressor provided by the utility model is described in detail with reference to the accompanying drawing.

In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right", "bottom", "inner", "outside", etc. instructions orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, merely to Convenient for describing the utility model and simplifying description, rather than the device or element of indication or suggestion meaning must have specific side Position is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicates indicated technology The quantity of feature.For the ordinary skill in the art, it can understand that above-mentioned term is practical at this as the case may be Concrete meaning in novel.

Embodiment 1

Fig. 1 shows one embodiment of frequency conversion refrigerator compressor provided by the utility model, the frequency conversion refrigerator compressor, It include: shell 1, base 2, compression mechanism 3, valve train 4, draw socket 5, motor 6, controller 7；The base 2 is fixed to be connected It connects in the bottom of shell 1；The motor 6, compression mechanism 3 and valve train 4 are placed in inside shell 1, and the motor 6 is placed in The lower part of the shell；Oil duct 9 is equipped with inside the compression mechanism 3；9 lower part of oil duct is equipped with the oil being connected to the oil duct Pipe 10；The motor 6 include: the bearing column 61 being connected in 1 bottom of shell, the rotor 63 being fixed in bearing column 61, be placed in turn Stator 62 outside son is connected electrically in the lead 64 of 62 lower end of stator；The compression mechanism includes: to connect with 1 inner wall of shell Support frame 31, fixed cylinder 32 on the support frame, crankshaft 33, the connecting rod 34 for being rotatably connected on 33 upper end of crankshaft and connecting rod are solid Surely the piston 35 connected；The piston 35 is slidably arranged in cylinder 32；The crankshaft 33 is connected on the rotor 63；It is described Valve train 4 includes: the intake valve 41 being fixed on the cylinder and exhaust valve 42, is sealedly connected on intake valve 41 and row respectively The exhaust pipe 44 on two valve decks 43, connection exhaust valve on air valve 42.

In this embodiment, the base 2 of housing bottom is set by connecting in shell 1, is reached inside fixed shell 1 The effect of other component realizes the basic function that compressor itself is placed and fixed secondly by the supporting role of base 2.

In this embodiment, by the way that compression mechanism 3 and valve train 4 are arranged inside shell 1, by compression mechanism 3 The effect of the support frame 31 of setting supports compression mechanism 3, and valve train 4 and compression mechanism are in connection status, and described The component of compression mechanism 3 and supporting mechanism 4 is made of metal material, and compression mechanism passes through the supporting role of support frame 31 simultaneously Valve train can be supported, achievees the purpose that it is that compression mechanism 3 and valve train are in shell.

In this embodiment, the motor 6 includes: the bearing column 61 being connected in 1 bottom of shell, is fixed in bearing column 61 Rotor 63, be placed in outside rotor 63 stator 62, be connected electrically in the lead 64 of 62 lower end of stator；The stator 62 of above-mentioned motor 6 It is that the conventional components of motor, not special limitation, but rotor 63 and stator 62 are in the intracorporal position of shell with rotor 63 The intracorporal lower half portion of shell, and rotor 63 is located at stator interior, herein it should be noted that said stator 62 is by under it Portion is connected with spring bolt, connect stator 62 to realize support stator 62, the rotor with housing bottom by spring bolt 63 are placed in inside stator 62, are by being fixed with bearing column 61 in housing bottom, so-called bearing column 61 is that lower end is fixed on shell Bottom, upper end can be rotated relative to shell 1, play while can supporting rotor 63 and do not influence the rotation of rotor, The stator is placed in the outside of rotor 63, that is, stator 62 wraps up rotor 63, and Dan Dingzi 62 is not exposed to rotor 63 again, works as electricity When machine works, by the introducing of 64 electric energy of lead, electromagnetism working principle rotates the rotor inside stator 62, realizes motor electricity The basic function of mechanical energy can be converted into.

In this embodiment, the support frame 31 in the compression mechanism 3 is connect with 1 inner wall of shell, and support frame 31 is fixed, then It is fixed on the inside of compressor by the compression mechanism 3 of the support of support frame 31, achievees the purpose that fixing compressor structure, cylinder 32 It fixes on the support frame, the outer wall of cylinder is all metal material, and 33 lower end of crankshaft in the compression mechanism is connected to above-mentioned turn Inside son 63, herein it should be noted that so-called clamping is to realize to block by the interference fit of crankshaft 33 and 63 contact surface of rotor The purpose connect, in the connecting rod 34 for being rotatably connected on 33 upper end of crankshaft, the connecting rod 34 is the link mechanism generallyd use, connecting rod 34 One end be fixedly connected in the shaft, the other end is fixedly connected with the piston 35, when under driving of the crankshaft 33 in motor 6 Rotation, it will be able to drive connecting rod 34 to operate, the piston 35 for drawing connecting rod 34 moves or thought to outside cylinder 32 to be pushed away in cylinder 32 It is dynamic, achieve the purpose that piston 35 does piston motion in cylinder 32.

Compression mechanism is reached and extracts gas to cylinder 32 simultaneously by making piston 35 do piston motion in cylinder 32 Compression excludes the effect of cylinder 32.

In the embodiment, the valve train 4 include: the intake valve 41 being fixed on the cylinder 32 and exhaust valve 42, It is sealedly connected on intake valve 41 and two valve decks 43 on exhaust valve 42, the exhaust pipe 44 that is connected on exhaust valve 42 respectively, passes through Intake valve 41 is fixed in the cylinder 32, and the intake valve 41 with inside cylinder 32 in being connected to transition, when piston 35 to When moving outside cylinder 32, gas is sucked by intake valve 41 by cylinder 32, and compress in cylinder 32, reaching makes in cylinder 32 Gas reduces temperature after being compressed, be then discharged from exhaust valve 42, realize the compression refrigerating function of compressor.

In the embodiment, oil duct 9 is equipped with inside the compression mechanism 3；9 lower part of oil duct is equipped with and is connected to the oil duct Oil pipe 10, the oil pipe 10 can suck lubricating oil, since oil duct 9 is arranged on above-mentioned crankshaft 33, when crankshaft 33 rotates Centrifugal force can be real lubricating oil from being thrown away in oil duct 9 and band is as on the piston 35, achieving the purpose that convey lubricating oil Now lubricate the purpose of piston 35, also, the lower part by motor 6 being placed in shell 1, make position of the motor 6 in shell 1 compared with It is low, so that the crankshaft 33 in the compression mechanism 3 connecting with the motor 6 is shorter, to be that oil duct can be good at conveying lubrication Oil, and in the case where motor rotation frequency is low shortens the distance of lubricating oil conveying, to realize in frequency conversion, low frequency In the case of stablize conveying lubricating oil to piston 35 on purpose.

Embodiment 2

The shell 1 includes upper housing and lower case；I.e. shell 1 is made of top half and lower half portion, passes through handle Shell is arranged to the upper housing of top half and the lower case of lower half portion, when installing the compressor, by under shell 1 Shell connect and fixes with base, and internal component is then installed in shell, after installing internal component, the upper casing Body covers, and is fastenedly connected upper housing with lower case using interference fit with lower case by upper housing.

Embodiment 3

On the basis of embodiment 1, the bottom of the compression mechanism 3 is additionally provided with the oil pump being connected to the oil pipe 10, institute Stating oil pump is the oil pump (because blocking for lower case is not found out in the lower part of the oil pipe 10 connection oil pump, Fig. 1) generallyd use, Lubricating oil is evacuated to oil pipe 10 by the effect of oil pump, realizes the purpose of conveying lubricating oil.

Embodiment 4

Draw socket 5 is additionally provided on the side wall of the shell；The lead 64 is connected in draw socket, is inserted by drawing The effect of seat keeps lead fixed on the inner wall of the housing and can connect with the controller of hull outside, needs to illustrate herein It is the controller of the model TYV028-DFZ90DH of controller 7 employed in the utility model.

Embodiment 5

The position of the draw socket is lower than the motor height, lower by the way that the position of draw socket is arranged, and is convenient for Controller connection, keeps the fixation position of controller also relatively low, reaches the decentralization for making the frequency conversion refrigerator compressor, increases pressure The stability of contracting machine, while reducing the noise that compressor generates at work, it is preferred that air intake duct is communicated on the inlet valve 11；The air intake duct 11 is fixed on the housing.

The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in Other related technical areas are also included in the patent protection scope of the utility model.

Claims

1. a kind of frequency conversion refrigerator compressor, comprising: shell, base, valve train, draw socket, controller；The base is fixed It is connected to the bottom of shell；It is characterized by: the frequency conversion refrigerator compressor further includes motor, the compressor being connected to motor Structure；The compression mechanism, valve train, motor are placed in enclosure interior, and the motor is placed in lower part of the housing；The compressor Oil duct is equipped with inside structure；The oil duct lower part is equipped with the oil pipe being connected to the oil duct.

2. frequency conversion refrigerator compressor according to claim 1, it is characterised in that: the position of the draw socket is lower than described Motor height.

3. frequency conversion refrigerator compressor according to claim 1, it is characterised in that: the shell includes upper housing and lower casing Body；The upper housing is fastenedly connected with lower case using interference fit.

4. frequency conversion refrigerator compressor according to claim 1, it is characterised in that: the bottom of the compression mechanism be additionally provided with The oil pump of the oil pipe connection.

5. frequency conversion refrigerator compressor according to claim 1, it is characterised in that: the motor includes: to be connected to shell bottom Interior bearing column, the rotor being fixed in bearing column, the stator for being placed in rotor exterior, the lead for being connected electrically in stator lower end.

6. frequency conversion refrigerator compressor according to claim 5, it is characterised in that: the stator lower part is connected with spring spiral shell Bolt.

7. frequency conversion refrigerator compressor according to claim 5, it is characterised in that: be additionally provided with extraction on the side wall of the shell Socket；The lead is connected in draw socket.

8. frequency conversion refrigerator compressor according to claim 5, it is characterised in that: the compression mechanism include: in shell The support frame of wall connection, crankshaft, the connecting rod for being rotatably connected on crankshaft upper end, is fixed with connecting rod fixed cylinder on the support frame The piston of connection；The piston is slidably arranged in cylinder；The crankshaft is connected on the rotor.

9. frequency conversion refrigerator compressor according to claim 8, it is characterised in that: the valve train includes: to be fixed on institute State the inlet valve on cylinder be sealedly connected on exhaust valve, respectively inlet valve on exhaust valve two valve decks, be connected to exhaust valve On exhaust pipe.

10. frequency conversion refrigerator compressor according to claim 9, it is characterised in that: be communicated with air intake duct on the inlet valve； The air intake duct is fixed on the housing.