CN208996947U - A kind of variable capacity pump assembly and the compressor with the pump assembly - Google Patents
A kind of variable capacity pump assembly and the compressor with the pump assembly Download PDFInfo
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- CN208996947U CN208996947U CN201821498332.7U CN201821498332U CN208996947U CN 208996947 U CN208996947 U CN 208996947U CN 201821498332 U CN201821498332 U CN 201821498332U CN 208996947 U CN208996947 U CN 208996947U
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- slide plate
- accommodating cavity
- pump assembly
- variable capacity
- air entry
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- 238000007906 compression Methods 0.000 claims abstract description 37
- 230000006835 compression Effects 0.000 claims abstract description 34
- 238000007789 sealing Methods 0.000 claims description 19
- 206010008469 Chest discomfort Diseases 0.000 claims description 8
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims 2
- 238000000429 assembly Methods 0.000 claims 2
- 230000007812 deficiency Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- CUZMQPZYCDIHQL-VCTVXEGHSA-L calcium;(2s)-1-[(2s)-3-[(2r)-2-(cyclohexanecarbonylamino)propanoyl]sulfanyl-2-methylpropanoyl]pyrrolidine-2-carboxylate Chemical compound [Ca+2].N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1.N([C@H](C)C(=O)SC[C@@H](C)C(=O)N1[C@@H](CCC1)C([O-])=O)C(=O)C1CCCCC1 CUZMQPZYCDIHQL-VCTVXEGHSA-L 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model provides a kind of variable capacity pump assembly and the compressor with the pump assembly, the technical issues of solution, is the technological deficiency for overcoming single compresser cylinder in the prior art that can not improve compressor efficiency according to load variations, technical solution includes: pump assembly, it include: cylinder assembly, eccentric rotary component, slide plate component, the second air entry is had additional on the side wall towards the low pressure chamber of the slide plate, the cylinder assembly is equipped with the second exhaust port being connected to the slide plate accommodating cavity, the controllable valve module that first end is connected to slide plate accommodating cavity and low pressure chamber respectively with second end.By the utility model, this new compression chamber formed by slide plate accommodating cavity can be unloaded or be loaded according to the needs of pump housing workload, realize the varying capacity operation of single cylinder, improve compressor efficiency.
Description
Technical field
The utility model relates to Compressor Technology fields, and in particular to a kind of variable capacity pump assembly and have the pump housing group
The compressor of part.
Background technique
Rotary compressor is therefore widely used in since refrigeration performance is good, small in size, structure is simple, high reliablity
In household room air conditioner, and rise steadily with advances in technology with energy prices, it is high-performance, low noise, safe and power saving
Air conditioner is more and more welcomed by the people.The raising of conditioner efficiency is greatly in compressor.Improve the effect of compressor
Rate produces one of the main means that efficient compressor has become current all compressor manufacturers product competition.
Existing rotary compressor mainly includes shell, pump assembly, electric machine assembly and oil sump.The stator of electric machine assembly with
Bore of stator is formed between shell, pump assembly, wherein stator upper space is motor epicoele, and stator lower space is under motor
Chamber.Pump assembly mainly includes cylinder, crankshaft, roller and slide plate component.Cylinder upper and lower ends are respectively provided with lower flange in cylinder
Interior formation sealed volume, slide plate component are limited in the sliding vane groove on cylinder wall, and roller rotates in cylinder chamber along its cavity wall, sliding
Piece is close under the action of the spring to which cylinder chamber is divided into suction chamber and compression chamber with roller, and slide plate is made with the rotation of roller
Straight reciprocating motion, so that rotary compressor be made to complete air-breathing-compression-exhaust process.
The compressor pump of the prior art, either single cylinder compressor or multicylinder compressor, a general cylinder only have
One compression chamber, especially single cylinder compressor can not improve compressor by transfiguration when compressor operating load variations
Efficiency.
Summary of the invention
Therefore, the technical problem to be solved by the present invention is to overcome single compresser cylinder in the prior art can not
The technological deficiency of compressor efficiency is improved according to load variations, to provide a kind of variable capacity pump assembly and there is the pump housing
The compressor of component.
For achieving the above object, the technical solution adopted in the utility model includes:
A kind of variable capacity pump assembly, comprising: cylinder assembly has inner cavity, on the inner wall of the inner cavity there is slide plate to hold
Set chamber；Eccentric rotary component is set in the inner cavity；Slide plate component is arranged in the slide plate accommodating cavity, including head is kept
The slide plate contacted with the eccentric rotary portion, the inner cavity is divided into the high pressure chest with exhaust outlet and had by the slide plate inhales
The low pressure chamber of port；The second air entry is had additional on the side wall towards the low pressure chamber of the slide plate；On the cylinder assembly
Equipped with the second exhaust port being connected to the slide plate accommodating cavity, exhaust valve component is provided at the second exhaust port；Controlled valve
Component, including the first end being connected to the slide plate accommodating cavity, the second end being connected to the low pressure chamber, and be arranged described
Between first end and the second end and it can control the valve of the first end Yu the second end on-off；It, can when loading increase-volume
Control valve module turns off the connection of the first end Yu the second end, closes the slide plate accommodating cavity；When the slide plate stretches out institute
When stating slide plate accommodating cavity to second air entry part exposing, second air entry holds the low pressure chamber and the slide plate
Set chamber connection；The slide plate described in the eccentric rotary Component driver, which bounces back to second air entry and is completely in the slide plate, to be held
When setting intracavitary, the low pressure chamber and the connection of the slide plate accommodating cavity are truncated, second air entry, the slide plate accommodating cavity
And the second exhaust port forms additional compression chamber, the low-pressure gas in the slide plate accommodating cavity constantly bounces back with the slide plate
It is compressed to form high pressure gas, until passing through the second exhaust when reaching the drainage pressure for opening the exhaust valve component
Mouth discharge；When unloading volume reduction, controllable valve module is connected to the first end and the second end, the slide plate accommodating cavity with it is described low
Press chamber connection, the low-pressure gas in the slide plate accommodating cavity constantly bounces back with the slide plate, via the slide plate accommodating cavity, can
Control valve module is back in the low pressure chamber.
The cylinder assembly includes: cylinder, has sliding vane groove on inner wall；First end sealing and second end sealing, setting exist
The cylinder axial ends, and it is shaped as the inner cavity with the limiting cylinder, it limits to form the slide plate appearance with the sliding vane groove
Set chamber.
The sliding vane groove tail end is connected to the first end of the controllable valve module.
The second end of the controllable valve module is connected to the air entry.
The valve includes controllable electromagnetic valve.
It further include the management circuit suitable for controlling the controllable valve module shutdown or open state, the control of the management circuit
Output end processed is connect with the valve controlled end in the controllable valve module.
The second exhaust port is arranged on the first end sealing.
The exhaust outlet of the high pressure chest side is arranged on the first end sealing.
The slide plate component further include: elastic component is arranged in the slide plate accommodating cavity, and partial pressure is in the cunning
On piece contacts the slide plate holding with the outer circumference surface in the eccentric rotary portion.
The slide plate includes: slide plate ontology, and the slide plate body tail section is equipped with limiting section, the flexible freedom of the elastic component
End is connect with the limiting section.
The limiting section is groove, and the flexible free end setting of the elastic component is in the groove.
The tail end of second air entry is connected to the groove.
Second air entry is the strip elongated slot that length direction is stretched out along the slide plate or retracted orientation is arranged.
The eccentricity of the eccentric rotary component is set as e, head to the head of the slide plate of second air entry
The distance between be X, when the slide plate stretches out the slide plate accommodating cavity longest, second air entry exposes the slide plate and holds
The size along slide plate stretching or retracted orientation for setting chamber side is H, then meets H=2e-X.
The value range of the H is 0.1~0.2mm.
The air entry is arranged on the internal chamber wall of the cylinder.
The eccentric rotary component includes: crankshaft, and the crankshaft runs through the cylinder assembly, and is had on the crankshaft inclined
Center portion；Roller, the roller are set on the eccentric part.
The sliding vane groove is the cavity being molded on the cylinder.
A kind of compressor, including according to pump assembly described in any of the above embodiments.
Technical solutions of the utility model have the advantages that
1. pump assembly provided by the utility model, comprising: cylinder assembly has inner cavity, has on the inner wall of the inner cavity
There is slide plate accommodating cavity；Eccentric rotary component is set in the inner cavity；Slide plate component is arranged in the slide plate accommodating cavity, including
Head keeps the slide plate contacted with the eccentric rotary portion, and the inner cavity is divided into the high pressure chest with exhaust outlet by the slide plate
With the low pressure chamber with air entry；The second air entry is had additional on the side wall towards the low pressure chamber of the slide plate；The gas
Cylinder component is equipped with the second exhaust port being connected to the slide plate accommodating cavity, is provided with exhaust valve group at the second exhaust port
Part；Controllable valve module, including the first end being connected to the slide plate accommodating cavity tail end, the second end being connected to the low pressure chamber,
And it is arranged between the first end and the second end and can control the valve of the first end Yu the second end on-off.
Above structure is the nuclear structure of the utility model, as realizing the structure base of new compression chamber load or unload
Plinth.For ease of understanding, increase-volume and volume reduction described below, so-called " appearance " refer to the volume that is effectively compressed of cylinder, rather than gas
Natural volume under cylinder off working state.
When pump housing workload is higher, the new compression chamber for needing to load the formation of slide plate accommodating cavity realizes increase-volume to improve energy
Effect, specific steps include: the connection that controllable valve module turns off the first end Yu the second end, the slide plate accommodating cavity envelope
It closes, slide plate accommodating cavity is loaded to form new compression chamber, realizes the increase-volume of cylinder.After increase-volume, new compression chamber specific work process are as follows:
When the slide plate, which stretches out the slide plate accommodating cavity, to be exposed to second air entry part, second air entry will be described low
Pressure chamber is connected to the slide plate accommodating cavity；It is complete that the slide plate described in the eccentric rotary Component driver bounces back to second air entry
When entirely in the slide plate accommodating cavity, the low pressure chamber and the connection of the slide plate accommodating cavity are truncated, second air-breathing
Mouthful, the slide plate accommodating cavity and the second exhaust port form additional compression chamber, the low-pressure gas in the slide plate accommodating cavity with
The slide plate constantly bounce back and be compressed to form high pressure gas, until reaching the drainage pressure for opening the exhaust valve component
When, it is discharged by the second exhaust port.
When pump housing workload is lower, does not need additionally to load slide plate accommodating cavity space again, need to unload new pressure at this time
For contracting chamber to improve efficiency, specific steps include: that controllable valve module is connected to the first end and the second end, the slide plate accommodating
Chamber is connected to the low pressure chamber, enters the low-pressure gas in the slide plate accommodating cavity by the second air entry, not with the slide plate
Disconnected retraction is back in the low pressure chamber via the slide plate accommodating cavity, controllable valve module, and is not compressed, therefore, slide plate
New compression chamber can not be formed in accommodating cavity, is not involved in the work of compressed gas, and the new compression chamber of unloading is reached with this and carries out volume reduction.
The utility model cylinder slide plate accommodating cavity tail portion is connected with controllable valve module, and when it is closed, confined space is formed,
Slide plate is equipped with the second air entry that can be connected to confined space with low pressure chamber towards low pressure chamber side.With the periodic reverse of slide plate
Movement, gas enter confined space by the second air entry, when the second air entry is closed as slide plate bounces back, slide plate compressed gas
High pressure gas is formed, when reaching the drainage pressure of exhaust valve component unlatching, is discharged by second exhaust port, to realize slide plate tail
Portion's space periodicity air-breathing, compression, the process of exhaust increase minimum cylinder volume.When controllable valve module is opened, slide plate accommodating cavity tail
Portion and low pressure chamber are linked to be access, and pressure balance, slide plate accommodating cavity is not closed at this time, without compression process, reduces at this time whole
Body minimum cylinder volume.By the utility model, it can be unloaded according to the needs of pump housing workload or load this by slide plate accommodating cavity
The new compression chamber formed realizes the varying capacity operation of single cylinder, improves compressor efficiency.
2. pump assembly provided by the utility model, valve includes controllable electromagnetic valve, and mating setting is suitable in pump assembly
In the management circuit for controlling the controllable valve module shutdown or open state, the control output end of the management circuit and it is described can
The valve controlled end connection in valve module is controlled, valve is opened according to management circuit control instruction or cut-off.
3. pump assembly provided by the utility model, the tail end of sliding vane groove is open in the prior art, practical new at this
In type, the first end of controllable valve module can be directly connected to the tail end of the sliding vane groove, sliding vane groove tail end can also be closed,
The position that sliding vane groove is corresponded on first end sealing or second end sealing additionally opens up connecting hole, by the first end of controllable valve module
It is connected to the connecting hole.The present embodiment preferably uses and is connected to controllable valve module with sliding vane groove tail end.Without to existing sliding vane groove
Structure makes more designs for improving and new compression chamber can be realized, and structure is simple and easy to implement.
4. the second end of pump assembly provided by the utility model, controllable valve module is connected to low pressure chamber, suction can be passed through
Port 12 is connected to low pressure chamber, can also additionally be started venthole on cylinder wall and is connected to low pressure chamber, the present embodiment is preferably adopted
It is connected to by the second end of controllable valve module with air entry 12, structure is simple and easy to implement.
5. pump assembly provided by the utility model sets the eccentricity of the eccentric rotary component as e, described second inhales
The distance between the head of port to head of the slide plate is X, when the slide plate stretches out the slide plate accommodating cavity longest, institute
Stating the second air entry to expose the size along slide plate stretching or retracted orientation of slide plate accommodating cavity side is H, then meets H=
2e-X.The value range of the H is 0.1~0.2mm.Second air entry is gradually exposed with the movement that slide plate stretches out slide plate accommodating cavity
Slide plate accommodating cavity, expose slide plate accommodating cavity size cannot it is excessive can not be too small, need reasonably to set its exposing ruler
Very little range.
6. compressor provided by the utility model, including according to pump assembly described above, there is above-mentioned pump assembly
All advantages.
In conclusion open and close of the utility model by the control channel of control cylinder slide plate accommodating cavity, effectively
The space of cylinder slide plate accommodating cavity is utilized, makes it in the loading and unloading for realizing new compression chamber under different operating conditions, realizes and hold
The on-demand output of amount.
The utility model is described in detail with reference to the accompanying drawing.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the explosive view of 1 middle pump body component of the utility model embodiment；
Fig. 2 is cross-sectional view of Fig. 1 middle pump body component along cylinder radial direction (controllable valve module is not shown in figure)；
Description of symbols:
1- cylinder；11- sliding vane groove；111- second exhaust port；112- exhaust outlet；12- air entry；13- high pressure chest；14- is low
Press chamber；15- first end sealing；16- second end sealing；2- crankshaft；31- slide plate；The second air entry of 311-；32- elastic component；4- rolling
Son；5- muffler.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can be combined with each other.
Embodiment
The utility model describes a kind of compressor comprising a kind of variable capacity pump assembly.Wherein pump assembly can be with
For single cylinder or twin-tub or multi-cylinder.
As illustrated in fig. 1 and 2, the variable capacity pump assembly in the present embodiment includes: cylinder assembly, has inner cavity, inner cavity
There is slide plate accommodating cavity on inner wall；Eccentric rotary component is set in inner cavity；Slide plate component is arranged in slide plate accommodating cavity, including
Head keeps the slide plate 31 contacted with eccentric rotary portion, and inner cavity is divided into 13 He of high pressure chest with exhaust outlet 112 by slide plate 31
Low pressure chamber 14 with air entry 12；The second air entry 311 is had additional on the side wall towards low pressure chamber 14 of slide plate 31；Air cylinder group
Part is equipped with the second exhaust port 111 being connected to slide plate accommodating cavity, is provided with exhaust valve component at second exhaust port 111；Controllably
Valve module, including the first end being connected to the slide plate accommodating cavity, the second end being connected to the low pressure chamber 14, and setting exist
Between the first end and the second end and it can control the valve of the first end Yu the second end on-off.
Above structure is the nuclear structure of the utility model, and the new compression chamber for forming slide plate accommodating cavity as realization loads
Or the structure basis of unloading.For ease of understanding, increase-volume and volume reduction described below, so-called " appearance " refer to being effectively compressed for cylinder
Volume, rather than the natural volume under cylinder off working state.
When pump housing workload is higher, the new compression chamber for needing to load the formation of slide plate accommodating cavity realizes increase-volume to improve energy
Effect, specific steps include: the connection that controllable valve module turns off the first end Yu the second end, the slide plate accommodating cavity envelope
It closes, slide plate accommodating cavity is loaded to form new compression chamber, realizes the increase-volume of cylinder.After increase-volume, new compression chamber specific work process are as follows:
When the slide plate 31 stretches out the slide plate accommodating cavity to 311 part of the second air entry, second air entry 311 is by institute
Low pressure chamber 14 is stated to be connected to the slide plate accommodating cavity；The slide plate 31 described in the eccentric rotary Component driver bounces back to described second
When air entry 311 is completely in the slide plate accommodating cavity, the low pressure chamber 14 and the connection of the slide plate accommodating cavity are truncated,
Second air entry 311, the slide plate accommodating cavity and the second exhaust port 111 form additional compression chamber, and the slide plate holds
Intracavitary low-pressure gas is set as the constantly retraction of slide plate 31 is compressed to form high pressure gas, until reaching makes the exhaust valve
When the drainage pressure that component is opened, it is discharged by the second exhaust port 111.
When pump housing workload is lower, does not need additionally to load slide plate accommodating cavity again, need to unload new compression chamber at this time
To improve efficiency, specific steps include: that controllable valve module is connected to the first end and the second end, the slide plate accommodating cavity with
The low pressure chamber 14 is connected to, and enters the low-pressure gas in the slide plate accommodating cavity by the second air entry, not with the slide plate 31
Disconnected retraction, is back in the low pressure chamber 14, and be not compressed via the slide plate accommodating cavity, controllable valve module, therefore, slide plate
New compression chamber can not be formed in accommodating cavity, is not involved in the work of compressed gas, and the new compression chamber of unloading is reached with this and carries out volume reduction.
The utility model cylinder slide plate accommodating cavity tail portion is connected with controllable valve module, and when it is closed, confined space is formed,
Slide plate is equipped with the second air entry that can be connected to confined space with low pressure chamber towards low pressure chamber side.With the periodic reverse of slide plate
Movement, gas enter confined space by the second air entry, when the second air entry is closed as slide plate bounces back, slide plate compressed gas
High pressure gas is formed, when reaching the drainage pressure of exhaust valve component unlatching, is discharged by second exhaust port, to realize slide plate tail
Portion's space periodicity air-breathing, compression, the process of exhaust increase minimum cylinder volume.When controllable valve module is opened, slide plate accommodating cavity tail
Portion and low pressure chamber are linked to be access, and pressure balance, slide plate accommodating cavity is not closed at this time, without compression process, reduces at this time whole
Body minimum cylinder volume.By the utility model, it can be unloaded according to the needs of pump housing workload or load this by slide plate accommodating cavity
The new compression chamber formed realizes the varying capacity operation of single cylinder, improves compressor efficiency.In addition to this, the utility model passes through
Increase the second air entry and the design to second exhaust port, original sliding vane groove can be made full use of on original air cylinder structure
Space structure can additionally increase minimum cylinder volume, improve the dischargeable capacity and efficiency of the pump housing, and new compression chamber is simple and reliable for structure
Property is good.
In the utility model, cylinder assembly includes: cylinder 1, has sliding vane groove 11 on inner wall；First end sealing 15 and second
End seal part 16 is arranged in 1 axial ends of cylinder, and forms the inner cavity with the cylinder 1 restriction, with the sliding vane groove 11
Restriction forms the slide plate accommodating cavity.The tail end of sliding vane groove is open in the prior art, in the present invention, controllable valve group
The first end of part can be directly connected to the tail end of the sliding vane groove 11, sliding vane groove tail end can also be closed, in the first end seal
The position that sliding vane groove is corresponded on part or second end sealing additionally opens up connecting hole, by the first end of controllable valve module and the connecting hole
Connection.The present embodiment preferably uses and is connected to controllable valve module with 11 tail end of sliding vane groove.Without being made to existing slide plate slot structure
More to improve the design that new compression chamber can be realized, structure is simple and easy to implement.
As variant embodiment, slide plate accommodating cavity can also be by the length that opens up directly on 1 wall of cylinder and radially along cylinder
Strip blind hole is formed, and slide plate is placed in sliding in strip blind hole.
In the utility model, as shown in Figure 1, the exhaust outlet 112 of 13 side of second exhaust port 111 and high pressure chest is arranged at
On one end sealing 15.When slide plate accommodating cavity is formed by strip blind hole, in strip blind hole, the setting connection of cylinder upper surface
The second exhaust port 111 on first end sealing 15 is arranged in hole, is connected to by intercommunicating pore with strip blind hole.As another kind
Embodiment, second exhaust port 111 can also be set up directly on cylinder 1, for example, the tail end of sliding vane groove 11 is set as second exhaust
11 tail end of sliding vane groove, can be specifically made into shoulder hole structure, elastic component is placed in stepped hole step upper limit, stepped hole tail by mouth 111
End setting exhaust valve component.It include the valve block gear being arranged on first end sealing 15 or cylinder 1 by rivet in exhaust valve component
Plate and valve block.It further include the muffler 15 that 15 top of first end sealing is set in pump assembly in the present embodiment.
The second end of controllable valve module is connected to low pressure chamber in the utility model, can be connected by air entry 12 and low pressure chamber
It is logical, it can also additionally start venthole on cylinder wall and be connected to low pressure chamber, the present embodiment is preferably used controllable valve module
Second end is connected to air entry 12, and structure is simple and easy to implement.
Valve includes controllable electromagnetic valve in the utility model, and mating setting is suitable for controlling the controlled valve in pump assembly
The management circuit of component shutdown or open state, the control output end of the management circuit and the valve in the controllable valve module
Controlled end connection, valve is opened according to management circuit control instruction or cut-off.
As shown in Figure 1, the second air entry 311 is that length direction is stretched out along slide plate 31 or the strip of retracted orientation setting is long
Slot.When designing the maximum length of the second air entry 311 exposing slide plate accommodating cavity side, setting is held when slide plate 31 stretches out slide plate first
When setting chamber longest, the size along the stretching of slide plate 31 or retracted orientation that the second air entry 311 exposes slide plate accommodating cavity side is H, and
The eccentricity of eccentric rotary component is set as e, the distance between head to head of slide plate 31 of the second air entry 311 is X, then
H=2e-X.According to the needs of practical operation, the value range of H can be set as 0.1~0.2mm.The size of H cannot be excessive
Cannot be too small, need reasonably to set the size range of its exposing.
On the basis of the above, the second air entry 311 is further described from slide plate accommodating cavity will be stretched out to i.e. will be complete
The process of full reduced time slide plate accommodating cavity.Slide plate is compressed to completely to rotate origin in slide plate accommodating cavity with eccentric rotary component,
When eccentric rotary component turns to 128 ° by origin, the second air entry 311 starts to stretch out slide plate accommodating cavity, eccentric rotary component
128 ° of corners be exactly air intake passage opening angle.When eccentric rotary component continues to rotate to 180 °, slide plate 31 stretches out slide plate
Accommodating cavity apart from longest, the second air entry 311 exposes the distance of slide plate accommodating cavity also longest, the size preferably 0.1~
Between 0.2mm, specific size is determined according to design requirement.When eccentric rotary component continues to rotate, slide plate starts to bounce back, thus
The distance for driving the second air entry to expose slide plate accommodating cavity is also gradually reduced, until when continuing to rotate to 232 °, the second air entry
311 closings, 232 ° of corners of eccentric rotary component are exactly the closing angle of air intake passage.So far, slide plate accommodating can be calculated
- 128 °=104 ° of air-breathing angular range area α=232 ° of chamber.Above-mentioned is only the air-breathing angle of distance the second air intake passage of explanation
Degree, is not limited to that, the opening angle and closing angle of air intake passage can be changed according to design requirement.
As shown in Fig. 2, sliding vane groove 11 is the cavity being molded on cylinder 1, and sliding vane groove upper and lower end face, finishing processing, and
Slide plate accommodating cavity is formed with the cooperation sealing of upper lower flange.
In the present embodiment, slide plate component further include: elastic component 32 is arranged in slide plate accommodating cavity, and partial pressure exists
On slide plate 31, contact the holding of slide plate 31 with the outer circumference surface in eccentric rotary portion.Elastic component 32 uses pressure spring or pagoda spring.This
The preferred pressure spring of embodiment.
In the present embodiment, slide plate 31 includes: slide plate ontology, and slide plate body tail section is equipped with limiting section, and elastic component 32 stretches
Free end is connect with limiting section.Limiting section is groove, and the flexible free end of elastic component 32 is arranged in groove.It can be stronger fixed
The position and connection of position slide plate ontology and elastic component 32.Wherein, as shown in Figure 1, the tail end of the second air entry 311 and groove connect
It is logical.
In the present embodiment, air entry 12 is arranged on the internal chamber wall of cylinder 1.Eccentric rotary component includes: crankshaft 2, crankshaft 2
Through cylinder assembly, and there is eccentric part on crankshaft 2；Roller 4, roller 4 are set on eccentric part.
The course of work of variable capacity pump assembly in the utility model are as follows:
Load new compression chamber: when pump housing workload is higher, controllable valve module turns off the first end and described second
The connection at end, the slide plate accommodating cavity are closed, in this case, when slide plate 31 stretches out slide plate accommodating cavity to the second air entry
311 when being gradually exposed, and low pressure chamber 14 is gradually connected to by the second air entry 311 with slide plate accommodating cavity；When eccentric rotary Component driver
Slide plate 31 bounces back to the second air entry 311 when being completely in slide plate accommodating cavity, the connection quilt of low pressure chamber 14 and slide plate accommodating cavity
Truncation, the second air entry 311, slide plate accommodating cavity and second exhaust port 111 form closed additional compression chamber, in slide plate accommodating cavity
Low-pressure gas be compressed to form high pressure gas with the constantly retraction of slide plate 31, until the pressure of high pressure gas reaches and makes exhaust valve
When the drainage pressure that component is opened, compressed high pressure gas is discharged by second exhaust port 111, so far completes a new compression
The compression process of chamber.
Unload new compression chamber: when pump housing workload is lower, controllable valve module is connected to the first end and described second
End, the slide plate accommodating cavity are connected to the low pressure chamber 14, enter the low pressure gas in the slide plate accommodating cavity by the second air entry
Body is back to the low pressure chamber 14 via the slide plate accommodating cavity tail end, controllable valve module with the slide plate 31 constantly retraction
It is interior, and be not compressed, therefore, slide plate accommodating cavity can not form new compression chamber, be not involved in the work of compressed gas, reached with this
It unloads new compression chamber and carries out volume reduction.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes among the protection scope created still in the utility model.
Claims (19)
1. a kind of variable capacity pump assembly characterized by comprising
Cylinder assembly has inner cavity, has slide plate accommodating cavity on the inner wall of the inner cavity；
Eccentric rotary component is set in the inner cavity；
Slide plate component is arranged in the slide plate accommodating cavity, and the slide plate (31) contacted with eccentric rotary portion, institute are kept including head
Slide plate (31) is stated the inner cavity is divided into the high pressure chest (13) with exhaust outlet (112) and there is the low pressure chamber of air entry (12)
(14)；
The second air entry (311) are had additional on the side wall towards the low pressure chamber (14) of the slide plate (31)；
The cylinder assembly is equipped with the second exhaust port (111) being connected to the slide plate accommodating cavity, the second exhaust port
(111) exhaust valve component is provided at；
Controllable valve module, including the first end being connected to the slide plate accommodating cavity, the second end being connected to the low pressure chamber (14),
And it is arranged between the first end and the second end and can control the valve of the first end Yu the second end on-off；
When loading increase-volume, controllable valve module turns off the connection of the first end Yu the second end, closes the slide plate accommodating cavity；
When the slide plate (31) stretch out the slide plate accommodating cavity to the second air entry (311) part, second air entry
(311) low pressure chamber (14) is connected to the slide plate accommodating cavity；The slide plate (31) described in the eccentric rotary Component driver
When bouncing back to second air entry (311) and being completely in the slide plate accommodating cavity, the low pressure chamber (14) and the slide plate
The connection of accommodating cavity is truncated, second air entry (311), the slide plate accommodating cavity and the second exhaust port (111) shape
At additional compression chamber, the low-pressure gas in the slide plate accommodating cavity is compressed to form high pressure as the slide plate (31) constantly bounces back
Gas, until being discharged when reaching the drainage pressure for opening the exhaust valve component by the second exhaust port (111)；
When unloading volume reduction, controllable valve module is connected to the first end and the second end, the slide plate accommodating cavity and the low pressure
Chamber (14) is connected to, and the low-pressure gas in the slide plate accommodating cavity constantly bounces back with the slide plate (31), is held via the slide plate
Set chamber, controllable valve module is back in the low pressure chamber (14).
2. variable capacity pump assembly according to claim 1, which is characterized in that the cylinder assembly includes:
Cylinder (1) has sliding vane groove (11) on inner wall；
First end sealing (15) and second end sealing (16), be arranged in the cylinder (1) axial ends, and with the cylinder (1)
Restriction forms the inner cavity, limits with the sliding vane groove (11) and forms the slide plate accommodating cavity.
3. variable capacity pump assembly according to claim 2, which is characterized in that sliding vane groove (11) tail end and it is described can
Control the first end connection of valve module.
4. variable capacity pump assembly according to claim 1, which is characterized in that the second end of the controllable valve module and institute
State air entry (12) connection.
5. variable capacity pump assembly according to claim 1, which is characterized in that the valve includes controllable electromagnetic valve.
6. variable capacity pump assembly according to claim 1, which is characterized in that further include being suitable for controlling the controllable valve group
Part shutdown or open state management circuit, it is described management circuit control output end and the controllable valve module in valve by
Control end connection.
7. variable capacity pump assembly according to claim 2, which is characterized in that second exhaust port (111) setting exists
On the first end sealing (15).
8. variable capacity pump assembly according to claim 2, which is characterized in that the exhaust outlet of high pressure chest (13) side
(112) it is arranged on the first end sealing (15).
9. variable capacity pump assembly according to claim 1, which is characterized in that the slide plate component further include:
Elastic component (32) is arranged in the slide plate accommodating cavity, and partial pressure makes the slide plate on the slide plate (31)
(31) it keeps contacting with the outer circumference surface in the eccentric rotary portion.
10. variable capacity pump assembly according to claim 9, which is characterized in that the slide plate (31) includes: slide plate sheet
Body, the slide plate body tail section are equipped with limiting section, and the flexible free end of the elastic component (32) is connect with the limiting section.
11. variable capacity pump assembly according to claim 10, which is characterized in that the limiting section is groove, the bullet
Property part (32) flexible free end setting in the groove.
12. variable capacity pump assembly according to claim 11, which is characterized in that the tail of second air entry (311)
End is connected to the groove.
13. -12 described in any item variable capacity pump assemblies according to claim 1, which is characterized in that second air entry
It (311) is strip elongated slot of the length direction along the slide plate (31) stretching or retracted orientation setting.
14. variable capacity pump assembly according to claim 13, which is characterized in that set the inclined of the eccentric rotary component
Heart amount is e, and the distance between head to head of the slide plate (31) of second air entry (311) is X, when the slide plate
(31) when stretching out the slide plate accommodating cavity longest, second air entry (311) expose slide plate accommodating cavity side along described
Slide plate (31) stretches out or the size of retracted orientation is H, then meets H=2e-X.
15. variable capacity pump assembly according to claim 14, which is characterized in that the value range of the H be 0.1~
0.2mm。
16. variable capacity pump assembly according to claim 2, which is characterized in that the air entry (12) is arranged described
On the internal chamber wall of cylinder (1).
17. variable capacity pump assembly according to claim 1, which is characterized in that the eccentric rotary component includes:
Crankshaft (2), the crankshaft (2) run through the cylinder assembly, and have eccentric part on the crankshaft (2)；
Roller (4), the roller (4) are set on the eccentric part.
18. variable capacity pump assembly according to claim 2, which is characterized in that the sliding vane groove (11) is to be molded over institute
State the cavity on cylinder (1).
19. a kind of compressor, which is characterized in that including according to claim 1-18 described in any item pump assemblies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821498332.7U CN208996947U (en) | 2018-09-13 | 2018-09-13 | A kind of variable capacity pump assembly and the compressor with the pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821498332.7U CN208996947U (en) | 2018-09-13 | 2018-09-13 | A kind of variable capacity pump assembly and the compressor with the pump assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208996947U true CN208996947U (en) | 2019-06-18 |
Family
ID=66801210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821498332.7U Withdrawn - After Issue CN208996947U (en) | 2018-09-13 | 2018-09-13 | A kind of variable capacity pump assembly and the compressor with the pump assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208996947U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026703A (en) * | 2018-09-13 | 2018-12-18 | 珠海凌达压缩机有限公司 | A kind of variable capacity pump assembly and the compressor with the pump assembly |
-
2018
- 2018-09-13 CN CN201821498332.7U patent/CN208996947U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026703A (en) * | 2018-09-13 | 2018-12-18 | 珠海凌达压缩机有限公司 | A kind of variable capacity pump assembly and the compressor with the pump assembly |
| CN109026703B (en) * | 2018-09-13 | 2024-03-22 | 珠海凌达压缩机有限公司 | Variable capacity pump body assembly and compressor with same |
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Granted publication date: 20190618 Effective date of abandoning: 20240322 |