A kind of low noise swash-plate-type compressor
Technical field
The present invention relates to Compressor Technology field, and in particular to a kind of low noise swash-plate-type compressor.
Background technology
Compressor is the heart of refrigeration system, and it sucks the refrigerant gas of low-temp low-pressure from suction nozzle, is transported by motor
After turning to be compressed which with piston, the refrigerant gas of High Temperature High Pressure are discharged to exhaustor, provide power for kind of refrigeration cycle,
So as to realize compression → condensation(Heat release)The kind of refrigeration cycle of → expansion → evaporation (heat absorption).And be now widely used in automobile
Compressor be swash-plate-type compressor, its be by with rotational movement piston of the rotating shaft in certain inclined swash plate or
The reciprocating compressor to realize gas compression of piston rod.
Swash-plate-type compressor is mainly by swash plate, two cylinders, pistons being assemblied on swash plate and link together
And installed in the protecgulum and bonnet of two outer end of cylinder for linking together.With vehicle miniaturization, the cabin of electromotor is more tight
Gather, it is impossible to add suction, exhaust port device in periphery simultaneously sometimes, in order to meet installing space needs, typically by aerofluxuss
Mouth and air entry are arranged on bonnet or rear-bank rotor housing.Further, since refrigerant gas be the suction muffler of protecgulum, crankshaft cavity and after
Circulate in the suction muffler of lid, so that there is pressure imbalance phenomenon in these three cavitys, be easily caused compressor moving component
Premature wear.As valve plate device is provided between bonnet and exhaust casing, and be located in the air intake passage inside valve plate be provided with for
The stay bolt of connection, so that air intake passage is narrow and long, this structure hinders the flowing of refrigerant gas, ultimately causes pressure
Loss.And as refrigerant gas can collide the inwall of air intake passage in the process of circulation, air pulsing can be caused unstable and shape
Into noise, so as to also increase the power consumption of compressor.
The content of the invention
It is an object of the invention to provide a kind of low noise swash-plate-type compressor, it is ensured that refrigerant gas are before protecgulum
Pressure in the bonnet suction muffler of lid suction muffler, crankshaft cavity and bonnet kept in balance all the time, effectively reduces air-flow
Pulsation, reduction noise.
The technical scheme is that:
A kind of low noise swash-plate-type compressor, including front-bank rotor housing, the rear-bank rotor housing of swash plate, crankshaft cavity and interconnection,
And for closing the protecgulum and bonnet of front and rear cylinder end, the protecgulum passes through front valve plate and front-bank rotor housing connects, and bonnet passes through
Valve plate and rear-bank rotor housing connection afterwards;The outer surface of the protecgulum is provided with the outer surface of the air entry of cold-producing medium, bonnet or rear-bank rotor housing
It is provided with the air vent of cold-producing medium;The protecgulum air intake passage communicated with the air entry is provided with the protecgulum, is led on the inside of protecgulum
Cross protecgulum chamber dividing plate and be separated into protecgulum high pressure chest and protecgulum low pressure chamber;The inlet end of the air vent is provided with the end aerofluxuss being connected
Passage, is separated into bonnet high pressure chest and bonnet low pressure chamber by bonnet chamber dividing plate on the inside of the bonnet, and the bonnet high pressure chest connects
It is connected to bonnet gathering sill;
The protecgulum air intake passage is by the front cylinder air-breathing silencing cavity connection on front valve plate device and front-bank rotor housing, the front cylinder
Air-breathing silencing cavity is connected with the crankshaft cavity by the rear cylinder air-breathing silencing cavity on rear-bank rotor housing;The protecgulum low pressure chamber and front-bank rotor housing
On the connection of front cylinder air intake passage, the bonnet low pressure chamber connected with the rear cylinder air intake passage on rear-bank rotor housing;
The protecgulum high pressure chest is by the front cylinder exhaust passage connection on front valve plate device and front-bank rotor housing, the front cylinder aerofluxuss
Passage covers bonnet gathering sill with after by the rear cylinder exhaust passage on rear-bank rotor housing and connects.
Further, the bonnet high pressure chest by bonnet gathering sill and end exhaust passage connect, the bonnet gathering sill and
Rear cover slot dividing plate is provided between bonnet high pressure chest.
Further, the outlet side of the protecgulum air intake passage is provided with protecgulum air-breathing silencing cavity, the front valve plate device bag
Include front valve plate high pressure chest that the front valve plate low pressure chamber connected with protecgulum low pressure chamber connected with protecgulum high pressure chest and with the protecgulum
The front valve plate intercommunicating pore that air-breathing silencing cavity matches, passes through front valve plate chamber between the front valve plate low pressure chamber, front valve plate high pressure chest
Dividing plate is separated;The rear valve plate device includes that the rear valve plate low pressure chamber connected with bonnet low pressure chamber and bonnet high pressure chest are connected
Logical rear valve plate high pressure chest, and the rear valve plate intercommunicating pore connected with the bonnet gathering sill, the rear valve plate low pressure chamber, rear valve
It is separated by rear valve plate chamber dividing plate between plate high pressure chest
Further, the protecgulum air-breathing silencing cavity, front valve plate intercommunicating pore, front cylinder air-breathing silencing cavity and rear cylinder air-breathing noise reduction
Chamber constitutes air-breathing voltage stabilizing area together.
Further, the bonnet gathering sill, rear valve plate intercommunicating pore, rear cover slot dividing plate and end exhaust passage constitute aerofluxuss together
Voltage stabilizing area.
Further, the protecgulum high pressure intracavity is provided with the protecgulum gathering sill for air-flow, the protecgulum gathering sill with
The front cylinder exhaust passage connection.
Further, the sectional area of the front cylinder air intake passage and rear cylinder air intake passage is equal.
Before in the present invention, valve plate device is similar to the structure of protecgulum, then the structure class of the structure of valve plate device and bonnet
Seemingly.
Compressor i.e. of the invention has two kinds of structures:The first structure is covered after air vent is located at, and its breathing process is such as
Under:
Compressor refrigerant gas is sucked by air entry, sequentially passes through protecgulum air intake passage, protecgulum air-breathing silencing cavity, front
Valve plate intercommunicating pore is entered in front-bank rotor housing, then by bent axle is entered after the front cylinder air-breathing silencing cavity of front-bank rotor housing, rear cylinder air-breathing silencing cavity
Chamber;The refrigerant gas of bent axle intracavity respectively enter several front cylinder air intake passages and rear-bank rotor housing in front-bank rotor housing several after
Cylinder air intake passage, in finally respectively enteing after protecgulum low pressure chamber and bonnet low pressure chamber.So as to swash plate band piston front-bank rotor housing,
When moving reciprocatingly in each cylinder holes in rear-bank rotor housing, by forward and backward valve plate, piston is by protecgulum low pressure chamber and bonnet low pressure chamber
Refrigerant gas inspiration suction chamber and realize breathing process.
Due to protecgulum air-breathing silencing cavity, front valve plate intercommunicating pore, front cylinder air-breathing silencing cavity and rear cylinder air-breathing silencing cavity together structure
Into air-breathing voltage stabilizing area so that the refrigerant gas entered from air entry are entered in crankshaft cavity, so as to ensure by air-breathing voltage stabilizing area
Gas is in flow process middle arteries dynamic stability, and effectively reduces noise.Simultaneously because bonnet gathering sill, rear valve plate intercommunicating pore, after
Cover slot dividing plate and end exhaust passage constitute aerofluxuss voltage stabilizing area together, the gas Jing aerofluxuss voltage stabilizing areas in compression chamber is further delayed
Air vent is entered after punching and is discharged, reduce further noise.
Further, since front cylinder air intake passage is equal with the sectional area of rear cylinder air intake passage and can be effectively controlled, can protect
Card pressure of the refrigerant gas in protecgulum low pressure chamber, the pressure in crankshaft cavity and the pressure in bonnet low pressure chamber can be all the time
Kept in balance, effectively reduces the pulsation of air-flow, reduces noise.
As reciprocating piston is bidirectional piston, so while suction muffler air-breathing is realized in one end of piston, piston
The other end then define the aerofluxuss of compression chamber.
So the compressor discharge process of the structure is:
Gas in compression chamber passes sequentially through forward and backward valve plate device and has respectively enterd protecgulum high pressure chest and bonnet high pressure chest
In, the gas in protecgulum high pressure chest collected by protecgulum gathering sill after before valve plate device pass sequentially through front cylinder exhaust passage and after
Cylinder exhaust passage, finally enters in bonnet gathering sill;Meanwhile, the gas in bonnet high pressure chest is in rear cover slot spacers block, buffering
The aerofluxuss for being aggregated into being made up of bonnet gathering sill, rear valve plate intercommunicating pore, rear cover slot dividing plate and end exhaust passage together under effect are steady
In nip, two bursts of high pressure gas flow through and enter air vent and discharge after aerofluxuss voltage stabilizing area further buffers.
Due to being provided with rear cover slot dividing plate in the middle of bonnet gathering sill and bonnet high pressure chest, so as to getting up to stop, buffering high pressure gas
The effect of stream, reduces causing noise because of its collision, so as to reduce the power consumption of compressor.
Second structure is that air vent is located on rear-bank rotor housing, the end exhaust passage which is connected with the inlet end of air vent
The inside of rear-bank rotor housing is located at, and also without aerofluxuss voltage stabilizing area.The structure breathing process is identical with the first structure, but its aerofluxus
Process is different, specially:Refrigerant gas in compression chamber pass sequentially through front valve plate device, rear valve plate device and respectively enter
In protecgulum high pressure chest and bonnet high pressure chest, the gas in protecgulum high pressure chest collected by protecgulum gathering sill after valve plate device before Jing,
Front cylinder exhaust passage enters rear cylinder exhaust passage;Meanwhile, the gas in bonnet high pressure chest is in rear cover slot spacers block, cushioning effect
The lower valve plate intercommunicating pore after is into after in cylinder exhaust passage;This two bursts of high pressure gas Jing bonnet air vents Jing after the buffering of end exhaust passage
And discharge, realize exhaust process.
Description of the drawings
Below in conjunction with the accompanying drawings the present invention is described in further detail.
Fig. 1 is the side view of the first situation of compressor of the present invention;
Side sectional view and front-cover structure schematic diagram when Fig. 2 is the air-breathing of compressor in Fig. 1;
Fig. 3 is the structural representation of front valve plate in Fig. 1;
Side sectional view and rear cover structure schematic diagram when Fig. 4 is the aerofluxuss of compressor in Fig. 1;
Fig. 5 is the inner side view of front-bank rotor housing in Fig. 1;
Fig. 6 is the inner side view of rear-bank rotor housing in Fig. 1;
Fig. 7 is the side view of second situation of compressor of the present invention;
Side sectional view when Fig. 8 is the aerofluxuss of compressor in Fig. 7.
In figure:1- protecgulums, valve plate device before 2-, 3- front-bank rotor housings, 4- rear-bank rotor housings, valve plate device after 5-, 6- bonnets, 7- air-breathings
Mouthful, 8- air vents, 9- air-breathing voltage stabilizings area, 10- crankshaft cavities, 11- swash plates, 12- compression chambers, 13- suction chambers, 14- aerofluxuss voltage stabilizings area;
1-1 protecgulum air-breathing silencing cavity, 1-2 protecgulum gathering sills, 1-3 protecgulum high pressure chests, 1-4 protecgulum low pressure chambers, 1-5 protecgulums chamber
Dividing plate, 1-6 protecgulum air intake passages;
Valve plate intercommunicating pore before 2-1, valve plate low pressure chamber before 2-2, valve plate chamber dividing plate before 2-3, valve plate high pressure chest before 2-4;
Cylinder exhaust passage before 3-1, cylinder air intake passage before 3-2, cylinder air-breathing silencing cavity before 3-3;
Cylinder exhaust passage after 4-1, cylinder air intake passage after 4-2, cylinder air-breathing silencing cavity after 4-3;
Cover slot dividing plate after 6-1,6-2 bonnet gathering sills, 6-3 bonnet high pressure chests, 6-4 bonnet low pressure chambers, 6-5 bonnets chamber every
Plate, 6-6 ends exhaust passage.
Specific embodiment
If Fig. 1-6 is the first structure of the present invention:
As shown in figure 1, a kind of low noise swash-plate-type compressor, including swash plate 11, crankshaft cavity 10, and interconnect
Front-bank rotor housing 3, rear-bank rotor housing 4, and for closing the protecgulum 1 of front and rear cylinder end and bonnet 6;Protecgulum 1 passes through front valve plate device
2 and front-bank rotor housing 3 connect, bonnet 6 passes through rear valve plate device 5 and rear-bank rotor housing 4 and connects;The outer surface of the protecgulum 1 is provided with refrigeration
The air entry 7 of agent, the outer surface of bonnet 6 are provided with the air vent 8 of cold-producing medium.
As shown in Figure 2,4, the protecgulum air intake passage 1-6 communicated with the air entry 7 is provided with the protecgulum 1, in protecgulum 1
Side is separated into protecgulum high pressure chest 1-3 and protecgulum low pressure chamber 1-4 by protecgulum chamber dividing plate 1-5;The inlet end of the air vent 8 is provided with
The end exhaust passage 6-6 being connected, is separated into bonnet high pressure chest 6-3 and bonnet by bonnet chamber dividing plate 6-5 on the inside of the bonnet 6
Low pressure chamber 6-4, the bonnet high pressure chest 6-3 are connected with end exhaust passage 6-6 by bonnet gathering sill 6-2;
As shown in Figure 5,6, protecgulum air intake passage 1-6 is by the front cylinder air-breathing silencing cavity on front valve plate device 2 and front-bank rotor housing 3
3-3 connects, and front cylinder air-breathing silencing cavity 3-3 is connected with the crankshaft cavity 10 by rear cylinder air-breathing silencing cavity 4-3 on rear-bank rotor housing 4
It is logical;Front cylinder air intake passage 3-2 in protecgulum low pressure chamber 1-4 and front-bank rotor housing 3 with connect, bonnet low pressure chamber 6-4 and after
Rear cylinder air intake passage 4-2 connections on cylinder body 4;
The protecgulum high pressure chest 1-3 is by the front cylinder exhaust passage 3-1 connections on front valve plate device 2 and front-bank rotor housing 3, described
Front cylinder exhaust passage 3-1 is connected with bonnet gathering sill 6-2 on bonnet 6 by the rear cylinder exhaust passage 4-1 on rear-bank rotor housing 4.
Further, the outlet side of the protecgulum air intake passage 1-6 is provided with protecgulum air-breathing silencing cavity 1-1, as shown in figure 3, front
Valve plate device 2 includes the front valve plate that front valve plate low pressure chamber 2-2 connected with protecgulum low pressure chamber 1-4 is connected with protecgulum high pressure chest 1-3
The high pressure chest 2-4 and front valve plate intercommunicating pore 2-1 matched with protecgulum air-breathing silencing cavity 1-1, the front valve plate low pressure chamber
It is separated by front valve plate chamber dividing plate 2-3 between 2-2, front valve plate high pressure chest 2-4;The rear valve plate device 5 includes and bonnet
The rear valve plate high pressure chest that connects with bonnet high pressure chest 6-3 of rear valve plate low pressure chamber of low pressure chamber 6-4 connection, and with the bonnet
The rear valve plate intercommunicating pore of gathering sill 6-2 connections, passes through rear valve plate chamber dividing plate between the rear valve plate low pressure chamber, rear valve plate high pressure chest
It is separated
Further, protecgulum air-breathing silencing cavity 1-1, front valve plate intercommunicating pore 2-1, front cylinder air-breathing silencing cavity 3-3, rear cylinder
Air-breathing silencing cavity 4-3 and rear valve plate intercommunicating pore constitute air-breathing voltage stabilizing area 9 together.
Further, the bonnet gathering sill 6-2, rear valve plate intercommunicating pore, rear cover slot dividing plate 6-1 and end exhaust passage 6-6
Aerofluxuss voltage stabilizing area 14 is constituted together.
Further, the protecgulum gathering sill 1-2 for air-flow is provided with the protecgulum high pressure chest 1-3, the protecgulum is led
Connect to groove 1-2 with the front cylinder exhaust passage 3-1.
Further, rear cover slot dividing plate 6-1 is provided between the bonnet gathering sill 6-2 and bonnet high pressure chest 6-3.
Further, the sectional area of the front cylinder air intake passage 3-2 and rear cylinder air intake passage 4-2 is equal.
The swash-plate-type compressor breathing process of the present invention is as shown in Figure 2:
Compressor refrigerant gas is sucked by air entry 7, enters protecgulum air-breathing silencing cavity through protecgulum air intake passage 1-6
1-1, then premenstrual valve plate intercommunicating pore 2-1 is in front-bank rotor housing 3, by front cylinder air-breathing silencing cavity 3-3 of front-bank rotor housing 3, rear cylinder air-breathing
Crankshaft cavity 10 is entered after silencing cavity 4-3;Several front cylinders that refrigerant gas in crankshaft cavity 10 are respectively enterd in front-bank rotor housing 3 are inhaled
Several rear cylinder air intake passage 4-2 of gas passage 3-2 and rear-bank rotor housing 4, finally respectively enter protecgulum low pressure chamber 1-4 and bonnet low pressure
In the 6-4 of chamber.During so as to moving reciprocatingly in each cylinder holes in swash plate with piston in front-bank rotor housing, rear-bank rotor housing, by forward and backward
Refrigerant gas inspiration suction chamber 13 in protecgulum low pressure chamber 1-4 and bonnet low pressure chamber 6-4 is realized inhaling by valve plate device, piston
Gas process.Compression chamber 12 is defined then in the other end of piston.
The exhaust process of the swash-plate-type compressor of the present invention is as shown in Figure 4:
Refrigerant gas in compression chamber 12 pass sequentially through front valve plate device 2, rear valve plate device 5 and respectively enterd protecgulum
In high pressure chest 1-3 and bonnet high pressure chest 6-3, the gas in protecgulum high pressure chest 1-3 collected by protecgulum gathering sill 1-2 after valve before Jing
Panel assembly 2 sequentially passes through front cylinder exhaust passage 3-1 and rear cylinder exhaust passage 4-1, finally enters in bonnet gathering sill 6-2;Meanwhile,
Gas in bonnet high pressure chest 6-3 stops in rear cover slot dividing plate 6-1, be aggregated in bonnet gathering sill 6-2 under cushioning effect;This two
Stock high pressure gas are being made up of together bonnet gathering sill 6-2, rear valve plate intercommunicating pore, rear cover slot dividing plate 6-1 and end exhaust passage 6-6
Aerofluxuss voltage stabilizing area 14 flows through bonnet air vent 8 and discharges after further buffering, and realizes exhaust process.
It is another kind of structure of the present invention as Figure 7-8:
With the first situation, which differs only in its structure, and the air vent 8 of cold-producing medium is located at the outer surface of rear-bank rotor housing 4, its
The end exhaust passage 6-6 being connected with the inlet end of air vent 8 is also provided in the inside of rear-bank rotor housing 4, and also without aerofluxuss voltage stabilizing
Area.The structure breathing process such as the first structure is identical, but its exhaust process is different, specific as follows:
Refrigerant gas in compression chamber 12 pass sequentially through front valve plate device 2, rear valve plate device 5 and respectively enterd protecgulum
In high pressure chest 1-3 and bonnet high pressure chest 6-3, the gas in protecgulum high pressure chest 1-3 collected by protecgulum gathering sill 1-2 after valve before Jing
Panel assembly 2, front cylinder exhaust passage 3-1 enter rear cylinder exhaust passage 4-1;Meanwhile, the gas in bonnet high pressure chest 6-3 is in rear cover slot
After under dividing plate 6-1 stops, cushioning effect, after, valve plate intercommunicating pore is entered in the 4-1 of cylinder exhaust passage, two bursts of high pressure gas Jing end aerofluxuss
Passage 6-6 buffering after Jing bonnets air vent 8 and discharge, realize exhaust process.
Above example is not limited only to protection scope of the present invention, all to be repaiied based on basic thoughts of the invention
What is changed or change belongs to protection scope of the present invention.