CN110425136A - The rolling rotor compressor of the no inspiratory check valve of low back pressure - Google Patents
The rolling rotor compressor of the no inspiratory check valve of low back pressure Download PDFInfo
- Publication number
- CN110425136A CN110425136A CN201910691436.2A CN201910691436A CN110425136A CN 110425136 A CN110425136 A CN 110425136A CN 201910691436 A CN201910691436 A CN 201910691436A CN 110425136 A CN110425136 A CN 110425136A
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- Prior art keywords
- exhaust
- rotor
- rolling
- sliding block
- check valve
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- 230000003434 inspiratory effect Effects 0.000 title claims abstract description 21
- 238000005096 rolling process Methods 0.000 title claims abstract description 20
- 230000030279 gene silencing Effects 0.000 claims abstract description 14
- 206010008469 Chest discomfort Diseases 0.000 claims description 21
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 230000008602 contraction Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000006872 improvement Effects 0.000 abstract description 6
- 238000005247 gettering Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001141 propulsive effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000000837 restrainer Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
- F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/06—Silencing
- F04C29/065—Noise dampening volumes, e.g. muffler chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention discloses a kind of rolling rotor compressors of no inspiratory check valve of low back pressure, including outer housing and machine core, the machine core is placed in outer housing by supporting element, the machine core includes motor, crankshaft, cylinder assembly, rolling-rotor, sliding block, it is characterized by: the shell intracoelomic cavity is air-breathing low-pressure end, it connect with shell air intake duct, the air inlet is connected by air-breathing silencing cavity component with housing cavity, the exhaust outlet is connected by exhaust valve with interior exhaust coil pack, and the interior exhaust coil pack is connect with the exhaust pipe on shell.Enclosure interior of the invention is low pressure chamber, can reduce motor temperature, to promote compressor efficiency and reliability, increase air-breathing silencing cavity, exhaust cylinder lid has improvement result to noise；Without inspiratory check valve, gettering efficiency is considerably increased, compressor efficiency can be improved.Due to enclosure interior position low pressure chamber, it can be directly applied for the refrigerator and refrigerator of low back pressure operating condition, usage range is wider.
Description
Technical field
The present invention relates to refrigeration technology field more particularly to a kind of rolling rotor-type pressures of the no inspiratory check valve of low back pressure
Contracting machine.
Background technique
Existing rotor-type compressor pump body portion is welded on shell, and motor is interference fitted by hot jacket mode and is mounted on shell
On, compressor inleting pipe directly connect to form low-pressure end with the suction hole of the pump housing, and entire enclosure interior is exhaust high-voltage end.In the presence of
Following defect: 1, being exhaust high-voltage end in shell, high-temperature gas can be such that motor temperature increases, reduce compressor efficiency, reliably
Property reduce；2, the pump housing and motor part and shell form an entirety, cause vibration of compressor big；3, without air-breathing silencing cavity component
And exhaust cushion chamber causes noise big；4, due in shell for exhaust high-voltage end, cannot directly be used in low back pressure refrigerator and
On refrigerator.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of energy raising in view of the deficiency of the prior art
The rolling rotor compressor of the no inspiratory check valve of low back pressure of compressor efficiency and unfailing performance.
The technical scheme adopted by the invention is as follows: a kind of rolling rotor compressor of the no inspiratory check valve of low back pressure,
Including outer housing and machine core, the machine core is placed in outer housing by supporting element, and the machine core includes motor, crankshaft, air cylinder group
One end of part, rolling-rotor, sliding block, the crankshaft is matched with motor, and the other end is connected with rolling-rotor, cylinder assembly and rolling
Turn defines a closed cavity, and the position of closed cavity changes with the rotation of rotor, and sliding block is by the closed cavity
Be divided into low pressure chamber and high pressure chest, air inlet and exhaust outlet offered on cylinder assembly, low pressure chamber is connected to air inlet, high pressure chest with
Exhaust outlet connection, it is characterised in that: the shell intracoelomic cavity is air-breathing low-pressure end, is connect with shell air intake duct, the air inlet
Mouth is connected by air-breathing silencing cavity component with housing cavity, and the exhaust outlet is connected by exhaust valve with interior exhaust coil pack,
The interior exhaust coil pack is connect with the exhaust pipe on shell.
According to the above technical scheme, the cylinder assembly includes the cylinder head set gradually from top to bottom, upper cylinder cover, cylinder block
With lower cylinder cap, the air inlet is installed in cylinder block, be equipped on upper cylinder cover the gas vent that is connected with high pressure chest and with row
The exhaust valve of stomata phase configuration is equipped with the discharge chamber being connected with exhaust valve outlet between upper cylinder cover and cylinder head, described
Interior exhaust coil pack is connected with discharge chamber.
According to the above technical scheme, it is equipped with slide block slot and slide plate spring hole in cylinder block, slide plate is equipped in slide plate spring hole
It is connected on rear side of spring, the slide plate spring and sliding block side, the front side of sliding block is contacted with the outer circumference surface of rolling-rotor always, and in sliding block
It is moved back and forth in slot along the radial direction of rotor, slide plate spring hole is blind hole, and the gas being connected to discharge chamber is equipped on upper cylinder cover
Circulation road, the airflow channel are connected with slide plate spring hole.
According to the above technical scheme, the exhaust valve is installed in the exhaust valve mounting groove of upper cylinder cover, and the exhaust valve includes
Exhaust valve plate, exhaust limit plate and the limit compensation block set gradually from exhaust outlet to exhaust cavity direction.
According to the above technical scheme, the supporting element includes in at least three feet bearing of the periphery of upper cylinder cover setting and foot
Support lower end connected pressure spring supporting pin, the pressure spring being connected with pressure spring supporting pin and the pressure spring branch being connected with the pressure spring other end
Bracer, the pressure spring supporting block are fixed on the lower end of outer housing, and the upper surface of each foot bearing forms motor mounting surface, with
Motor is connected by fastener.
According to the above technical scheme, the outer housing includes horizontal cross-section for ellipse, the tubular upper housing that can mutually fasten
And lower case, the upper housing are spherical surface contraction, the lower case bottom surface is the contraction of round and smooth ellipsoid, binding post, technique tracheae
Road and exhaust pipe are separately positioned in lower case, and the housing outer surface of lower case is connected separately with under-chassis.
According to the above technical scheme, the upper end of the machine core passes through position-limit mechanism and outer housing phase configuration, the position-limit mechanism
The stop collar being arranged at limited block, the limited block are corresponded to including the limited block being arranged on machine core crankshaft and on outer housing
It is inserted into stop collar.
According to the above technical scheme, the sliding block includes slider body, the slider body have radially stretch out and with turn
The tangent front side wall of sub- outer peripheral surface is symmetrically equipped with elastic slice in the front end of slider body, and two elastic slices are respectively provided with and rotor-side
The end of setting that wall abuts against and in curved surface, both ends difference opposing root extend to rotor circumferential direction and are in opposite exhibition
It opens.
According to the above technical scheme, including slider body and sliding block contact, the height phase of the slider body and sliding block contact
Together, the two is flexibly connected, and the front side wall of the sliding block contact is to be used for and rolling-rotor periphery equipped with the arc-shaped curved surface to concave
Plane-plane contact.
According to the above technical scheme, groove, the groove and sliding block side are equipped in the side of the front side wall of sliding block contact
High pressure chest is connected.
It is obtained by the present invention to have the beneficial effect that
1, enclosure interior of the invention is low pressure chamber, can reduce motor temperature, to promote compressor efficiency and reliable
Property, air-breathing silencing cavity is increased, exhaust cylinder lid has improvement result to noise；Without inspiratory check valve, air-breathing effect is considerably increased
Compressor efficiency can be improved in rate, due to enclosure interior position low pressure chamber, can be directly applied for the refrigerator of low back pressure operating condition and cold
Cabinet；
2, the present embodiment also makes improvement by the structure to cylinder body, i.e., is connected to by being equipped on upper cylinder cover with discharge chamber
Airflow channel, keep slide plate both ends pressure suitable, act on sliding block pressure at two ends counteracting, pressing spring make slide plate be close to rotor；Make
Directly compressor is discharged by exhaust pipe in the high temperature and high pressure gas that cylinder compression generates, and reduces enclosure interior temperature；
3, by setting position limiting structure, can 360 ° prevent metal strike noise, i.e., no matter machine core swings to which direction, prevents
It is just the same to protect effect, is aspectant contact, plastics are limited and will not be worn, it not will cause spring removal and stuck risk,
Compressor is improved in transport and operational reliability, in addition this structure is also used as vehicle-mounted compressor use；
4, the supporting element of machine core is installed using pressure spring mode, makes motor and upper cylinder cover be not direct to connect with compressor case body
Touching, reduces installation difficulty, it is unilateral to reduce air gap；By the buffering of pressure spring, the vibrating noise of compressor is effectively reduced；
5, the present invention by being improved to spring-piece type slide block mechanism, elastic slice itself there are elasticity can with run to each angle
The eccentric rotor face contact of degree, while the arcwall face of the front side wall of slider body is contacted with eccentric rotor line, makes this slide block mechanism
Have always in compressor operation and keep contacting with rolling-rotor at three, two face contacts, a line contact is not only increased and let out
Show up product, there are also multiple leakage-preventing functions to improve compressor efficiency to reduce high pressure chest gas leakage to low pressure chamber；
6, face contact swing type slide block structure provided by the invention, by the way that the cunning with eccentric rotor periphery plane-plane contact is arranged
Block contact, this slide block structure compressor run when remain with rolling-rotor face contact, leakage area is increased, to subtract
Small high pressure chest gas leakage improves compressor efficiency to low pressure chamber；It is equipped with and high pressure chest phase on the arc-shaped curved surface of sliding block
The groove of connection, in compressed gas, gas can act on sliding block square groove surface, can form propulsive thrust, reduce and act on
Rolling-rotor pressure, so as to reduce friction power loss, to further promote compressor efficiency.
Detailed description of the invention
Fig. 1 is main sectional view of the invention.
Fig. 2 is that the present invention removes the top view after upper housing.
Fig. 3 is cut away left side view of the invention.
Fig. 4 is right side cross-sectional view of the invention.
Fig. 5 is a kind of structural schematic diagram of slide block mechanism provided in this embodiment.
Fig. 6 is the structural schematic diagram for the exhaust valve being arranged on upper cylinder cover in the present embodiment.
Fig. 7 is the fastening screw arrangement schematic diagram in the present embodiment on upper cylinder cover.
Fig. 8 is the E direction view of Fig. 1 in the present invention.
Fig. 9 is partial enlarged view at F in Fig. 3.
Figure 10 is partial enlarged view at G in Fig. 1.
Figure 11 is the structural schematic diagram of cylinder assembly provided in this embodiment.
Figure 12 is the top view of upper cylinder cover.
Figure 13 is the B-B direction cross-sectional view of Figure 12.
Figure 14 is the schematic perspective view of upper cylinder cover.
Figure 15 is a kind of structural schematic diagram of spring-piece type slide block mechanism provided in this embodiment.
Figure 16 is the structural schematic diagram of elastic slice and sliding block phase configuration in spring-piece type slide block structure provided in this embodiment.
Figure 17 is the structural schematic diagram of elastic slice in spring-piece type slide block structure provided in this embodiment.
Figure 18 is the structural schematic diagram of face contact swing type slide block mechanism provided in this embodiment.
Figure 19 is the structural representation of sliding block contact and sliding block phase configuration in face contact swing type sliding block provided in this embodiment
Figure.
Figure 20 is that the cooperation of sliding block contact and rolling-rotor in face contact swing type slide block mechanism provided in this embodiment is shown
It is intended to.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Figs 1-4, a kind of rolling rotor compressor of no inspiratory check valve of low back pressure is present embodiments provided,
Including outer housing and machine core, the machine core is placed in outer housing by supporting element, and the machine core includes motor 5, crankshaft 6, cylinder
Component, rolling-rotor 14, sliding block 24.One end of the crankshaft 6 is matched with motor, and the other end is connected with rolling-rotor 14, institute
Stating motor 5 drives crankshaft 6 to rotate, and crankshaft 6, which drives, rolls the operating of 14 rotors, cylinder assembly and rolling-rotor 14 define one it is close
Cavity is closed, the position of closed cavity changes with the rotation of rolling-rotor 14, and the closed cavity is divided into low pressure chamber by sliding block 24
And high pressure chest, air inlet and exhaust outlet are offered on cylinder assembly, and low pressure chamber is connected to air inlet, and high pressure chest and exhaust outlet connect
Logical, the shell intracoelomic cavity is air-breathing low-pressure end, is connect with shell air intake duct, and the air inlet passes through air-breathing silencing cavity component
2 are connected with housing cavity, no inspiratory check valve, and the upper chamber vacuum noz(zle) of air-breathing silencing cavity component 2 is inhaled inside housings and with shell
Tracheae alignment；The exhaust outlet is connected by exhaust valve with interior exhaust coil pack 10, and the cylinder head 8 in cylinder assembly is equipped with
Gas vent, can be used for installing interior exhaust coil pack 10, and exhaust coil pack 10 is configured with exhaust noise silencing component, the interior exhaust
Coil pack is connect with the exhaust pipe on shell.After energization, motor band dynamic crankshaft, crankshaft eccentric portion drives rolling-rotor in cylinder
It inside continuously runs, completes suction and discharge process.It is low pressure chamber inside inventive shell, motor temperature can be reduced, to promote pressure
Contracting engine efficiency and reliability, and enclosure interior position low pressure chamber, can be directly applied for the refrigerator and refrigerator of low back pressure operating condition；It increases
Air-breathing silencing cavity, exhaust cylinder lid have improvement result to noise, and no inspiratory check valve considerably increases gettering efficiency, Ke Yiti
High compressor efficiency.
In the present embodiment, as shown in Fig. 6,7,10,11, the cylinder assembly includes the cylinder head set gradually from top to bottom
8, the axle journal of upper cylinder cover 16, cylinder block 15 and lower cylinder cap 13, the upper cylinder cover 16 and lower cylinder cap 13 and crankshaft 6 passes through bearing fit
Connection constitutes bearing jointing structure.Gasket 9 is provided between cylinder head 8 and upper cylinder cover 16, the two is connected by fastening screw 28
It connects, fastening screw 28 is arranged as shown in Figure 7.It is equipped with air inlet in cylinder block 15 to be connected with low pressure chamber, on upper cylinder cover 16
Exhaust valve equipped with the gas vent being connected with high pressure chest and with gas vent phase configuration is set between upper cylinder cover 16 and cylinder head 8
There is the discharge chamber 29 being connected with exhaust valve outlet, the interior exhaust coil pack 10 passes through exhaust noise silencing component and discharge chamber
29 are connected.Wherein, as shown in figure 9, being installed on gasket 17 before exhaust noise silencing component and cylinder head 8, exhaust noise silencing component is also
It is connected by the exhaust noise silencing screw assembly with interior exhaust disk component 10.It is slided as shown in figure 5, being equipped with installation in cylinder block 15
The slide block slot of block 24 and slide plate spring hole are equipped with slide plate spring 20, the slide plate spring 20 and 24 side of sliding block rear side in slide plate spring hole
It is connected, the front side of sliding block 24 is contacted with the outer circumference surface of rolling-rotor 14 always, and along the diameter of rolling-rotor 14 in slide block slot
To reciprocating movement.
Since refrigerant is by the way that after cylinder compression, the gas of high temperature and pressure is directly entered exhaust pipe after cylinder head 8, no
It is communicated in compression case body, in order to keep acting on the counteracted by pressure at 24 both ends of sliding block, it is necessary to act on sliding block both ends
Pressure is identical, therefore, the following improvement that the present embodiment also does the structure of cylinder body: as shown in Figure 11,12,13, makes the slide plate
Spring hole 33 is blind hole, i.e., by the upper end face closure of lower cylinder cap 13, rear end is sealed by plug 32 for the lower end in slide plate spring hole
It closes, the airflow channel 31 being connected to discharge chamber is equipped on upper cylinder cover 13, the airflow channel 31 is connected with slide plate spring hole 33.
The high temperature and high pressure gas that exhaust valve plate is discharged draws a part and acts on 24 bottom rear of sliding block, even if acting on 24 liang of sliding block
End pressure is offset.Directly compressor is discharged by exhaust pipe in the high temperature and high pressure gas for generating cylinder compression, reduces in shell
Portion's temperature；And the present invention does not change the structure of original rotor-type compressor, it is only necessary to it is logical that air-flow is machined on upper cylinder cover 16
Road 31 and compression spring hole rear end setting plug 32 closed, do not influence cylinder, upper cylinder cover, lower head body structure,
Structure is simple, easy to process.
In the present embodiment, as shown in Fig. 6 and Figure 14, the exhaust valve is installed in the exhaust valve mounting groove of upper cylinder cover, institute
Stating exhaust valve includes the exhaust valve plate 26 set gradually from exhaust outlet to exhaust cavity direction, exhaust limit plate 25 and limit compensation
Block 27.Wherein, exhaust valve plate 26 is fixed by being vented limit plate 25, while limits the openings of sizes of valve block, guaranteed
Valve block reliability is equipped with locating piece on limit compensation block 27, and limiting slot is offered on exhaust limit plate 25, and the two matches
It closes, is positioned with realizing to limit plate 25.It is protruded outward in addition, being symmetrically arranged in two sides in exhaust valve mounting groove
Arc-shaped limiting slot 1607, the arc-shaped limiting slot 1607 are used to clamp the end portion of exhaust valve plate, are vented limit plate
End portion and the end portion for limiting compensation block, so that exhaust valve plate, exhaust limit plate and limit compensation block are installed on
In exhaust valve mounting groove, make total in the case where not influencing exhaust cross gap size, eliminate rivet technique, makes to fill
Simplify with technique.
In the present embodiment, seal washer is installed, and sealing is compressed by screw 28 between the cylinder head and upper cylinder cover,
So that discharge chamber forms seal chamber, to prevent high pressure gas to be leaked to shell from exhaust coil pipe discharge the high pressure gas of discharge
Intracoelomic cavity further improves compression efficiency.
In the present embodiment, as depicted in figs. 1 and 2, outer housing, which uses streamlined structure, has improvement to noise, specifically,
The outer housing includes horizontal cross-section for ellipse, the tubular upper housing 1 and lower case 4 that can mutually fasten, and the upper housing 1 is
Spherical surface is shunk, and 2 bottom surface of lower case is the contraction of round and smooth ellipsoid, and binding post, technique feed channel and exhaust pipe are respectively set
In lower case 4, it is furnished with rubber stopper 23 in technique feed channel and exhaust pipe.The housing outer surface of lower case 4 is connected separately with
Under-chassis, side are equipped with binding post 37, and mechanism is as shown in Figure 8.
During transportation, due to Uneven road and the state of brake, the machine core of compressor shakes for compressor and cabinet
It is irregular for moving, and machine core not only can all around teetertotter, it is also possible to can be shaken to other directions, behind left front, the right side
Side etc., the prior art, which shakes machine core to other directions, certain protective action, but after prolonged collision, due to point
Contact to point, metal spacing point has abrasion, does not have position-limiting action after abrasion, so as to cause spring removal risk, minor metal
Limit point produces metal iron filings after hitting for a long time, these iron filings can enter kinematic pair with oil circuit, eventually leads to compressor card
Dead failure.Therefore, in view of the above-mentioned problems, the present embodiment additionally provides a kind of limiting device, can 360 ° prevent metal strike noise,
I.e. no matter machine core swings to which direction, and protection effect is just the same, is aspectant contact, and plastics are limited and will not be ground
Damage not will cause spring removal and stuck risk, improve compressor in transport and operational reliability.As shown in Figure 1, the position restrainer
Structure includes the limited block 7 being arranged on crankshaft and the stop collar 36 that setting at limited block is corresponded on outer housing, the limit
Block 7 is inserted into stop collar 36.Wherein, certain gap is equipped between limited block 7 and stop collar 36.Specifically, 7 top of limited block
With at a distance from 36 upper end inner surface of stop collar be 3-5mm；Gap between 36 side wall inner surfaces of limited block 7 and stop collar is 4-
5mm, limited block 7 is extend into stop collar 36 after assembly, so that it may play the position-limiting action of machine core all directions.Stop collar 36 is by gold
Belong to material to be made, is cyclic structure, end periphery is welded with three stabilizer blades on it, for being welded and fixed with upper housing 1.Such as
Shown in Fig. 3, the limited block 7 is the circular cylinder body that lower end has opening, and it is convex to be equipped with step-like installation in the upper end of crankshaft 6
Platform, the limited block 7 are installed on step-like installation base, and the two is fixedly connected, and can be fixed by way of interference fit
Connection can also be fixedly connected using the structure of key cooperation.The limited block 7 is made of soft plastic material, guarantees collision
When do not rupture, high temperature not aging.
In the present embodiment, also the structure of upper cylinder cover is improved, makes upper cylinder cover that there is support function, makes of the invention
Structure is more compact.Specific structure is as shown in Figure 14 and Fig. 1, and the upper cylinder cover includes upper cylinder cover ontology 1603, in upper cylinder cover sheet
Body 1603 is equipped with exhaust outlet 1602, is equipped at the middle part of upper cylinder cover ontology for the bearing hole 1601, In with crankshaft phase configuration
Upper cylinder cover body perimeter is arranged at intervals at least three feet bearing 1604, and the foot bearing extends upwards, and end face is formed thereon
Motor mounting surface, and fastener receptacles 1606 are equipped with, the upper upper cylinder cover is connected by stator bolts 21 with motor 5.
Specifically, as shown in figure 14, being evenly spaced on 4 feet along upper cylinder cover ontology circumferencial direction in the present embodiment
Bearing 1604.Foot bearing include from the round upper cylinder cover ontology circumference bearing end face 1604a that side extends radially outward, it is described
Bearing end face 1604a smoothly transits with round upper cylinder cover body peripheral and connect, the bearing end face 1604a and upper cylinder cover ontology
1603 end face is in same level.Support column 1604b is set on the top of bearing end face, is equipped on support column 1604b
Fastener receptacles 1606 for being connected to motor are equipped with counterbore in the lower part of bearing end face.In the present embodiment, the support
Column 1604b can be the circular cone column or triangular prism or polygon column that gradually taper up on cylindric or outer radial, and concrete shape can be with
Selection design is carried out according to actual needs.
The supporting element includes under the four feet bearing 1604 and foot bearing that the periphery in upper cylinder cover of above-mentioned introduction is arranged
Hold the counterbore pressure spring supporting pin 18 matched, the pressure spring 11 being connected with pressure spring supporting pin and the pressure being connected with the pressure spring other end
Spring supporting block 12, the pressure spring supporting block 12 are fixed on the lower end of lower case.It is designed in this way, keeps motor and upper cylinder cover not straight
It connects and is contacted with compressor case body, reduce installation difficulty, it is unilateral to reduce air gap；By the buffering of pressure spring, effectively reduce
The vibrating noise of compressor.
During the work time due to rolling rotor compressor, there are pressure difference, gas is easy from height for high pressure chest and low pressure chamber
It presses chamber to leak to low pressure chamber, reduces refrigerating capacity, and reduce the compression efficiency of rolling rotor compressor, especially in high pressure
Between chamber and low pressure chamber under the biggish operating condition of pressure difference, gas from high pressure chest to low pressure chamber leak the problem of it is even more serious.Therefore it needs
The leakproofness between high pressure chest and low pressure chamber is improved, is leaked to avoid gas from high pressure chest to low pressure chamber.Therefore, the present embodiment
Also the structure of sliding block is redesigned, low pressure chamber is leaked into reduce high pressure chest gas, improves compressor efficiency.To cunning
The structure design of block provides the following two kinds scheme:
The first is spring-piece type slide block structure, as seen in figs. 15-17, including slider body, the slider body, which has, is in
The front side wall 2401 for extending radially out and designing with the tangent arc-shaped face in rotor outer periphery face, side wall 2404 and cylinder are intracorporal thereafter
Slide plate spring 20 is connected, and elastic slice 34 is symmetrically housed in the front end of slider body, two elastic slices 34 are respectively provided with and rotor sidewall
The end of setting abutting against and in curved surface, both ends difference opposing root extend to rotor circumferential direction and are in opposite expansion,
The height of the elastic slice 34 is identical with the height of slider body.
In the present embodiment, the elastic slice 34 is flexible flake structure, the groove width phase of thickness and mounting groove 2403
Together, with a thickness of 0.15-0.35 ㎜, preferably 0.2 ㎜.Specifically, elastic slice includes end 3403 and root 3401, the end of elastic slice
3403 design for arcwall face, are used for rotor outer periphery plane-plane contact.The root 3401 of elastic slice is installed in the mounting groove of slider body,
The root 3401 of two elastic slices extends and is arranged in parallel along to sliding block rear wall direction, and the end and root of elastic slice pass through fillet surface
3402 transition connection, fillet surface 3402 and 2402 phase configuration of arc groove on slider body, the fillet surface 3402 are S-shaped
Shape, so that elastic slice is more adjacent to rotor outer periphery face.It can when in order to keep the end of elastic slice and rolling-rotor contact surface verticality overproof
To automatically adjust centering, in the present embodiment, make the arc shape of 3405 evagination of elastic slice root bottom end, the fillet surface 3402 with
The arc groove being arranged on slider body is in mating connection, and elastic slice face can be made with the whole contact area of rolling-rotor, to reduce always
Leakage.As shown in figure 5, further, the outside of end 3403 is also devised with the flange 3404 rolled over to slider body lateral bending, in this way
When rolling-rotor runs to sliding vane groove center, sealing is kept between elastic slice and cylinder inner wall, gas can all be arranged
Out, clearance is not present, capacity is increased, so as to promote compressor efficiency.
Compressor at runtime, elastic slice itself exist elasticity can with the eccentric rotor face contact that runs to all angles, together
When slider body the arcwall face of front side wall contacted with eccentric rotor line, so that this slide block mechanism is had three always in compressor operation
Place keeps contacting with rolling-rotor, two face contacts, and a line contact not only increases leakage area, there are also multiple leakage-preventing
Function improves compressor efficiency to reduce high pressure chest gas leakage to low pressure chamber.
Second is face contact swing type slide block structure, as depicted in figures 18-20, including slider body and sliding block contact 35,
The slider body is flexibly connected with sliding block contact 35, and the side wall of the sliding block contact 35 is equipped with the arc to eccentric rotor side indent
Shape curved surface 3501 is used for and 14 periphery plane-plane contact of rolling-rotor.
Specifically, the sliding block contact is connected by button-head hinge with slider body.It is set at the back side of sliding block contact 3503
There is interconnecting piece 3505, circular groove is equipped in interconnecting piece, for being connected with the arc-shaped pin 2402 that slider body front end is arranged
It connects to form hinge arrangement.The middle part of slider body is arranged in the arc-shaped pin 2402, and arc-shaped pin is located on slider body
Two sides be symmetrically arranged with limiting section 2402, the two sides that arc groove is corresponded on the interconnecting piece of sliding block contact are correspondingly provided with shoulder block
3504, the shoulder block 3504 is matched with limiting section 2403, is limited for the rotational angle to sliding block contact.
In the present embodiment, the sliding block contact uses special high temperature resistant, and oil resistant plastics material is had using injection molding
High temperature resistant, it is wear-resistant the features such as.
In the present embodiment, groove 3502, the groove 3502 and high pressure chest phase are also provided in the side of arc-shaped curved surface
Connection.For convenience of processing, the groove is square groove, and arcuately the short transverse of curved surface is equipped at intervals with multiple.In compressed gas
When, gas can act on sliding block square groove surface, can form propulsive thrust, and it reduces and acts on rolling-rotor pressure, so as to
Reduce friction power loss, to further promote compressor efficiency.
In addition, lubricating and cooling system of the invention is the prior art, this will not be repeated here.
Embodiments described above is some embodiments of the present application, instead of all the embodiments.The reality of the application
The detailed description for applying example is not intended to limit claimed scope of the present application, but is merely representative of the selected implementation of the application
Example.Based on the embodiment in the application, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall in the protection scope of this application.
Claims (10)
1. the low back pressure rolling rotor compressor of no inspiratory check valve, including outer housing and machine core, the machine core pass through branch
Support member is placed in outer housing, and the machine core includes motor, crankshaft, cylinder assembly, rolling-rotor, sliding block, one end of the crankshaft
It is matched with motor, the other end is connected with rolling-rotor, and cylinder assembly and rolling-rotor define a closed cavity, confined air
The position of chamber changes with the rotation of rotor, and the closed cavity is divided into low pressure chamber and high pressure chest by sliding block, is opened on cylinder assembly
Equipped with air inlet and exhaust outlet, low pressure chamber is connected to air inlet, and high pressure chest is connected to exhaust outlet, it is characterised in that: the shell
Intracoelomic cavity is air-breathing low-pressure end, is connect with shell air intake duct, and the air inlet passes through air-breathing silencing cavity component and housing cavity
It is connected, the exhaust outlet is connected by exhaust valve with interior exhaust coil pack, the row on the interior exhaust coil pack and shell
Tracheae connection.
2. the rolling rotor compressor of the no inspiratory check valve of low back pressure according to claim 1, it is characterised in that: institute
Stating cylinder assembly includes that the cylinder head set gradually from top to bottom, upper cylinder cover, cylinder block and lower cylinder cap, the air inlet are installed in
In cylinder block, the gas vent being connected with high pressure chest and the exhaust valve with gas vent phase configuration are equipped on upper cylinder cover, in upper cylinder half
It covers and is equipped with the discharge chamber being connected with exhaust valve outlet between cylinder head, the interior exhaust coil pack is connected with discharge chamber
It is logical.
3. the rolling rotor compressor of the no inspiratory check valve of low back pressure according to claim 2, it is characterised in that: In
Cylinder block is equipped with slide block slot and slide plate spring hole, and slide plate spring, the slide plate spring and sliding block side rear side are equipped in slide plate spring hole
It is connected, the front side of sliding block is contacted with the outer circumference surface of rolling-rotor always, and is moved back and forth in slide block slot along the radial direction of rotor,
Slide plate spring hole is blind hole, and the airflow channel being connected to discharge chamber, the airflow channel and slide plate are equipped on upper cylinder cover
Spring hole is connected.
4. the rolling rotor compressor of the no inspiratory check valve of low back pressure according to claim 2 or 3, feature exist
In: in the exhaust valve mounting groove that the exhaust valve is installed in upper cylinder cover, the exhaust valve includes from exhaust outlet to exhaust cavity direction
Exhaust valve plate, exhaust limit plate and the limit compensation block set gradually.
5. the rolling rotor compressor of the no inspiratory check valve of low back pressure according to claim 2, it is characterised in that: institute
State supporting element include upper cylinder cover periphery be arranged at least three feet bearing, with foot support lower end be connected pressure spring supporting pin,
The pressure spring being connected with pressure spring supporting pin and the pressure spring supporting block being connected with the pressure spring other end, the pressure spring supporting block are fixed on
The upper surface of the lower end of outer housing, each foot bearing forms motor mounting surface, is connect with motor by fastener.
6. the rolling rotor compressor of the no inspiratory check valve of low back pressure according to claim 1, it is characterised in that: institute
Stating outer housing includes horizontal cross-section for ellipse, and the tubular upper housing and lower case that can mutually fasten, the upper housing are spherical surface
It shrinks, the lower case bottom surface is the contraction of round and smooth ellipsoid, and binding post, technique feed channel and exhaust pipe are separately positioned on lower casing
On body, the housing outer surface of lower case is connected separately with under-chassis.
7. the rolling rotor compressor of the no inspiratory check valve of low back pressure according to claim 1 or 2, feature exist
In: by position-limit mechanism and outer housing phase configuration, the position-limit mechanism includes being arranged on machine core crankshaft for the upper end of the machine core
Limited block and the stop collar being arranged at limited block is corresponded on outer housing, in limited block insertion stop collar.
8. the rolling rotor compressor of the no inspiratory check valve of low back pressure according to claim 1 or 2, feature exist
In: the sliding block includes slider body, and the slider body has radially stretching and the front side wall tangent with rotor outer periphery face,
Elastic slice is symmetrically housed in the front end of slider body, two elastic slices are respectively provided with setting abutting against with rotor sidewall and in curved surface
End, both ends difference opposing root extends to rotor circumferential direction and be in opposite direction be unfolded.
9. the rolling rotor compressor of the no inspiratory check valve of low back pressure according to claim 1 or 2, feature exist
In: including slider body and sliding block contact, the slider body is identical as the height of sliding block contact, and the two is flexibly connected, described
The front side wall of sliding block contact is to be used for and rolling-rotor periphery plane-plane contact equipped with the arc-shaped curved surface to concave.
10. the rolling rotor compressor of the no inspiratory check valve of low back pressure according to claim 9, it is characterised in that:
It is equipped with groove in the side of the front side wall of sliding block contact, the groove is connected with the high pressure chest of sliding block side.
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| CN201910691436.2A CN110425136A (en) | 2019-07-29 | 2019-07-29 | The rolling rotor compressor of the no inspiratory check valve of low back pressure |
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| CN201910691436.2A CN110425136A (en) | 2019-07-29 | 2019-07-29 | The rolling rotor compressor of the no inspiratory check valve of low back pressure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115182879A (en) * | 2022-07-05 | 2022-10-14 | 珠海格力电器股份有限公司 | Rotor compressor |
| CN115217760A (en) * | 2021-10-15 | 2022-10-21 | 广州市德善数控科技有限公司 | Low pressure chamber rotary compressor and air conditioner |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100621025B1 (en) * | 2005-05-19 | 2006-09-15 | 엘지전자 주식회사 | Modulation apparatus for rotary compressor |
| WO2009059488A1 (en) * | 2007-11-09 | 2009-05-14 | Guang Dong Mei Zhi Refrigeration Equipment Co., Ltd | A rotary compressor with low pressure in its shell and methods for controlling its cold media and oil and application thereof |
| WO2012091389A1 (en) * | 2010-12-29 | 2012-07-05 | Lg Electronics Inc. | Compressor |
| CN103122856A (en) * | 2011-11-18 | 2013-05-29 | 三星电子株式会社 | Rotary compressor and manufacturing method thereof |
| WO2014114222A1 (en) * | 2013-01-25 | 2014-07-31 | Yao Frank | Rotating device and rotor compressor using same, and fluid motor |
| CN204532762U (en) * | 2015-03-19 | 2015-08-05 | 安徽美芝制冷设备有限公司 | Compressor and exhaust valve component thereof |
| CN107013456A (en) * | 2017-05-08 | 2017-08-04 | 珠海格力节能环保制冷技术研究中心有限公司 | The slide plate and rotary blade type compressor of a kind of rotary blade type compressor |
| CN107989793A (en) * | 2017-12-25 | 2018-05-04 | 珠海格力电器股份有限公司 | Cylinder assembly and the compressor for including it |
| CN108252899A (en) * | 2018-04-04 | 2018-07-06 | 黄石东贝电器股份有限公司 | A kind of compressor position limiting structure |
| CN108397393A (en) * | 2018-04-17 | 2018-08-14 | 珠海凌达压缩机有限公司 | Pump assembly and compressor and air conditioner |
| CN108757456A (en) * | 2018-06-01 | 2018-11-06 | 广东美芝精密制造有限公司 | Rotary compressor, gas compression system, refrigeration system and heat pump system |
| CN208996948U (en) * | 2018-09-13 | 2019-06-18 | 珠海凌达压缩机有限公司 | Pump assembly, compressor and two temperature air-conditioning system |
| CN210715104U (en) * | 2019-07-29 | 2020-06-09 | 黄石东贝电器股份有限公司 | Rolling rotor compressor of non-suction check valve for low back pressure |
-
2019
- 2019-07-29 CN CN201910691436.2A patent/CN110425136A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100621025B1 (en) * | 2005-05-19 | 2006-09-15 | 엘지전자 주식회사 | Modulation apparatus for rotary compressor |
| WO2009059488A1 (en) * | 2007-11-09 | 2009-05-14 | Guang Dong Mei Zhi Refrigeration Equipment Co., Ltd | A rotary compressor with low pressure in its shell and methods for controlling its cold media and oil and application thereof |
| WO2012091389A1 (en) * | 2010-12-29 | 2012-07-05 | Lg Electronics Inc. | Compressor |
| CN103122856A (en) * | 2011-11-18 | 2013-05-29 | 三星电子株式会社 | Rotary compressor and manufacturing method thereof |
| WO2014114222A1 (en) * | 2013-01-25 | 2014-07-31 | Yao Frank | Rotating device and rotor compressor using same, and fluid motor |
| CN103967787A (en) * | 2013-01-25 | 2014-08-06 | 北京星旋世纪科技有限公司 | Rotation apparatus, rotor type compressor applying rotation apparatus, and fluid motor applying rotation apparatus |
| CN204532762U (en) * | 2015-03-19 | 2015-08-05 | 安徽美芝制冷设备有限公司 | Compressor and exhaust valve component thereof |
| CN107013456A (en) * | 2017-05-08 | 2017-08-04 | 珠海格力节能环保制冷技术研究中心有限公司 | The slide plate and rotary blade type compressor of a kind of rotary blade type compressor |
| CN107989793A (en) * | 2017-12-25 | 2018-05-04 | 珠海格力电器股份有限公司 | Cylinder assembly and the compressor for including it |
| CN108252899A (en) * | 2018-04-04 | 2018-07-06 | 黄石东贝电器股份有限公司 | A kind of compressor position limiting structure |
| CN108397393A (en) * | 2018-04-17 | 2018-08-14 | 珠海凌达压缩机有限公司 | Pump assembly and compressor and air conditioner |
| CN108757456A (en) * | 2018-06-01 | 2018-11-06 | 广东美芝精密制造有限公司 | Rotary compressor, gas compression system, refrigeration system and heat pump system |
| CN208996948U (en) * | 2018-09-13 | 2019-06-18 | 珠海凌达压缩机有限公司 | Pump assembly, compressor and two temperature air-conditioning system |
| CN210715104U (en) * | 2019-07-29 | 2020-06-09 | 黄石东贝电器股份有限公司 | Rolling rotor compressor of non-suction check valve for low back pressure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115217760A (en) * | 2021-10-15 | 2022-10-21 | 广州市德善数控科技有限公司 | Low pressure chamber rotary compressor and air conditioner |
| CN115182879A (en) * | 2022-07-05 | 2022-10-14 | 珠海格力电器股份有限公司 | Rotor compressor |
| CN115182879B (en) * | 2022-07-05 | 2023-10-27 | 珠海格力电器股份有限公司 | Rotor compressor |
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Effective date of registration: 20210520 Address after: No. 6, Jinshan Avenue East, Tieshan District, Huangshi economic and Technological Development Zone, Hubei Province Applicant after: Huangshi Dongbei Compressor Co.,Ltd. Address before: No.6, East Jinshan Avenue, Huangshi economic and Technological Development Zone, Hubei Province Applicant before: Huangshi Dongbei Electrical Appliance Co.,Ltd. |
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