CN106089726B - Compressor - Google Patents
Compressor Download PDFInfo
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- CN106089726B CN106089726B CN201610615459.1A CN201610615459A CN106089726B CN 106089726 B CN106089726 B CN 106089726B CN 201610615459 A CN201610615459 A CN 201610615459A CN 106089726 B CN106089726 B CN 106089726B
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- windward
- face
- rotor
- crankshaft
- venthole
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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
- 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
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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
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention discloses a kind of compressors, it include: motor, motor includes stator and rotor, stator housing is on rotor, rotor is equipped with exhaust passage, the upper surface of rotor is equipped with balance weight, balance weight has the first end face and second end face being oppositely arranged, first end face is suitable for connecting with rotor, and the both ends on balance weight extending direction are respectively end and leeward end windward, end is connected between first end face and second end face windward, and on the direction from first end face to second end face, end is towards leeward sloped-end windward；The upper end of crankshaft, crankshaft is connect with rotor, and exhaust passage is close to crankshaft；The lower end of compression mechanism, compression mechanism and crankshaft connects；Silencer cover, crankshaft pass through silencer cover, and silencer cover is located on the upper surface of compression mechanism, and silencer cover is equipped with venthole, and venthole is opposite with exhaust passage.Compressor according to the present invention can improve compressor oil accumulation and spit the problem of oil.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, more particularly, to a kind of compressor.
Background technique
In the related technology, during operation, a large amount of lubricating oil is carried enclosed rotary formula compressor by refrigerant air-flow
It into motor upper space, separates, is assembled by isolated lubricating oil on motor top, and along shell in motor upper space
Gap between motor is flowed back downwards, when back-flow velocity is inadequate, will form oil accumulation on motor top；What is do not separated is micro-
Small oil droplet is discharged compressor with refrigerant air-flow, forms oil spitting amount, forms oil film in heat exchanger surface, produces to the heat exchanger of air-conditioning
Raw adverse effect, influences Performance for Air Conditioning Systems.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, the present invention mentions
A kind of compressor out, the compressor have the advantages that motor top oil accumulation is few.
Compressor according to an embodiment of the present invention, comprising: motor, the motor include stator and rotor, outside the stator
It covers on the rotor, the rotor is equipped with exhaust passage, and the upper surface of the rotor is equipped with balance weight, the balance weight
With the first end face and second end face being oppositely arranged, the first end face is suitable for connecting with the rotor, and the balance weight
Both ends on extending direction are respectively end and leeward end windward, and the end windward is connected to the first end face and described
Between second end face, on from the first end face to the direction of the second end face, the end windward is towards described leeward
Sloped-end；Crankshaft, the upper end of the crankshaft are connect with the rotor, and the exhaust passage is close to the crankshaft；Compression mechanism,
The compression mechanism is connect with the lower end of the crankshaft；Silencer cover, the crankshaft pass through the silencer cover, and the silencer cover is provide with
On the upper surface of the compression mechanism, the silencer cover is equipped with venthole, and the venthole is opposite with the exhaust passage.
Compressor according to an embodiment of the present invention, by being arranged close to the exhaust passage of crankshaft on rotor, and by noise reduction
Venthole on cover is arranged and opposite with exhaust passage close to crankshaft, and the refrigerant air-flow being discharged out of silencer cover can be allow to lead to
It crosses the exhaust passage that venthole is discharged into upwards on rotor and flows up to the space on rotor top, effectively reduce stator and shell
The coolant quantity that gap between body flows up enables lubricating oil to pass through the clearance backflow between stator and shell to electricity
The lower space of machine prevents lubricating oil from accumulating on motor top.In addition, in the direction from first end face to second end face
On, it is streamed by end windward to second by the way that the end windward of balance weight towards leeward sloped-end, can not only be reduced fluid
The resistance of end face, and can avoid the oil droplet vertical direction toward impact balance weight wall carried in the refrigerant air-flow flowed up in the middle part of rotor
The phenomenon that face, Oil Droplet Breakup caused by reduction balance weight rotation, guarantees the negligible amounts of small oil droplet in compressor, reduce compressor
Thus oil spitting amount can make compressor have the advantages that efficiency is high, oil spitting amount is small.
According to some embodiments of the present invention, the exhaust passage is multiple to be spaced apart along the crankshaft circumferential direction,
The venthole is multiple and corresponds with multiple exhaust passages.
In some embodiments of the invention, the diameter of the crankshaft is D1, and the diameter of the cylinder of the compression mechanism is
D2, the upper surface of the compression mechanism are perspective plane, orthographic projection of the venthole on the perspective plane described in any two it is outer
The maximum distance of contour line is D3, and the D1, the D2, the D3 meet: D3≤0.9 (D1+D2).
According to some embodiments of the present invention, the diameter of the crankshaft is D1, and the silencer cover is equipped with venthole, described
Crankshaft passes through the venthole, and the diameter of the venthole is D4, the D1 and the D4 satisfaction: D4 > D1.
In some embodiments of the invention, guide ring is equipped at the venthole, the guide ring is located at the noise reduction
The top of cover and along the circumferential direction of the venthole extend.
In some embodiments of the invention, the balance weight is inner ring close to the side wall of the rotation centerline of the rotor
Side wall, the side wall opposite with the interior ring-side wall are outer ring side wall, and the end windward includes that inside grouping teaching and outside shunt
Face, the inside grouping teaching close to the interior ring-side wall and with the interior round and smooth connection of ring-side wall, the outside grouping teaching is close
The outer ring side wall and with the round and smooth connection of outer ring side wall.
In some embodiments of the invention, the end windward further includes intermediate portion windward, and portion connects windward for the centre
It connects between the inside grouping teaching and the outside grouping teaching, from the first end face to the direction of the second end face
On, the centre windward portion towards the leeward sloped-end.
In some embodiments of the invention, the intersection of the inside grouping teaching and the outside grouping teaching is configured to institute
State intermediate portion windward.
In some embodiments of the invention, portion is configured to windward side, the surrounding of the windward side windward for the centre
It is connect respectively with the first end face, the inside grouping teaching, the second end face and the outside grouping teaching.
In some embodiments of the invention, angle of the centre windward between portion and the first end face is θ 1, institute
It states θ 1 to meet: 1≤60 ° of θ.
In some embodiments of the invention, the angle between the outside grouping teaching and the first end face is θ 2, institute
It states θ 2 to meet: 2≤75 ° of θ.
In some embodiments of the invention, the angle between the inside grouping teaching and the first end face is θ 3, institute
It states θ 3 to meet: 3≤75 ° of θ.
In some embodiments of the invention, the angle between the end windward and the first end face is θ 4, the θ
4 meet: 4≤75 ° of θ.
In some embodiments of the invention, the area of the end windward be a, the balance weight perpendicular to its center
The maximum cross-section area of bone line is b, the value range of the b and a ratio are as follows: b/a≤0.8.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of compressor according to an embodiment of the present invention；
Fig. 2 is the schematic diagram of internal structure of compressor according to an embodiment of the present invention；
Fig. 3 is the sectional view of compressor shown in Fig. 2；
Fig. 4 is the structural schematic diagram of the balance weight of compressor according to an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the silencer cover of compressor according to an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of the silencer cover of compressor according to an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the silencer cover of compressor according to an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of the silencer cover of compressor according to an embodiment of the present invention；
Fig. 9 is the structural schematic diagram of the silencer cover of compressor according to an embodiment of the present invention；
Figure 10 is the structural schematic diagram of the balance weight of compressor according to an embodiment of the present invention；
Figure 11 is the sectional view of the line A-A along Figure 10；
Figure 12 is the structural schematic diagram of the balance weight of compressor according to an embodiment of the present invention；
Figure 13 is the structural schematic diagram of the balance weight of compressor according to an embodiment of the present invention；
Figure 14 is the sectional view of the line C-C along Figure 13；
Figure 15 is the sectional view of the line B-B along Figure 13；
Figure 16 is the structural schematic diagram of the balance weight of compressor according to an embodiment of the present invention.
Appended drawing reference:
Compressor 100,
Motor 1, stator 11, rotor 12, exhaust passage 121,
Balance weight 2, first end face 21, second end face 22, interior ring-side wall 23, outer ring side wall 24,
End 25 windward, inside grouping teaching 251, outside grouping teaching 252,
Intermediate portion 253 windward,
Leeward end 26,
Crankshaft 3,
Compression mechanism 4, cylinder 41, upper bearing (metal) 42, lower bearing 43,
Silencer cover 5, venthole 51, guide ring 52, centre bore 53,
Shell 6,
Rotor direction of rotation e, center bone line m, the section n perpendicular to its center bone line of balance weight,
Air flow direction f1, f2, f3.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "left", "right", "inner",
The orientation or positional relationship of the instructions such as "outside", " circumferential direction " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
Compressor 100 according to an embodiment of the present invention is described below with reference to Fig. 1-Figure 16.
As shown in Fig. 1-Figure 16, compressor 100 according to an embodiment of the present invention, comprising: motor 1, crankshaft 3, compression mechanism 4
With silencer cover 5.
Specifically, motor 1 includes stator 11 and rotor 12, for 11 housing of stator on rotor 12, rotor 12 is equipped with row
The upper surface (upper surface as shown in Figure 1) in gas channel 121, rotor 12 is equipped with balance weight 2.As shown in Fig. 4, Figure 10-Figure 16,
Balance weight 2 has the first end face 21 and second end face 22 being oppositely arranged, and first end face 21 is suitable for connecting with rotor 12, and balances
Both ends on 2 extending direction of block are respectively end 25 and leeward end 26 windward, and end 25 is connected to 21 He of first end face windward
Between second end face 22, on from first end face 21 to the direction of second end face 22, end 25 is inclined towards leeward end 26 windward
Tiltedly.On the one hand, fluid can be reduced by end 25 windward around the resistance for flowing to second end face 22；On the other hand, due to end windward
25 is integral inclined, can avoid 2 wall of oil droplet vertical direction toward impact balance weight carried from the refrigerant air-flow flowed up in the middle part of rotor 12
The phenomenon that face, Oil Droplet Breakup caused by reduction balance weight 2 rotates, guarantee the negligible amounts of small oil droplet in compressor 100, reduces pressure
Thus 100 oil spitting amount of contracting machine can make compressor 100 have the advantages that efficiency is high, oil spitting amount is small.
As shown in Figure 10, arrow e is the direction that rotor 12 rotates, and rotor 12 can be with dynamic balance weight 2 according to shown in arrow e
Direction rotation, leeward end 26 is located at the upstream of 12 direction of rotation of rotor, and end 25 is located at 12 direction of rotation of rotor windward
Downstream.End 25 is connected between first end face 21 and second end face 22 windward, from first end face 21 to second end face 22
On direction, end 25 is tilted towards leeward end 26 windward.As shown in figure 11, on direction from bottom to up, end 25 windward
Gradually tilt to the right.
The upper end (upper end as shown in Figure 1) of crankshaft 3 is connect with rotor 12, and exhaust passage 121 is close to crankshaft 3, compressor
Structure 4 is connect with the lower end (lower end as shown in Figure 1) of crankshaft 3, and crankshaft 3 passes through silencer cover 5, and silencer cover 5 is located at compression mechanism 4
Upper surface (upper surface as shown in Figure 1) on.Silencer cover 5 is equipped with venthole 51, venthole 51 and 121 phase of exhaust passage
It is right.That is, silencer cover 5 is equipped with venthole 51, venthole 51 is close to crankshaft 3 and opposite with exhaust passage 121.As a result,
The refrigerant air-flow being discharged out of venthole 51 can flow into directly up in exhaust passage 121, to reduce stator 11 and shell 6
Between the coolant quantity that flows up of gap, the clearance backflow for enabling lubricating oil to pass through between stator 11 and shell 6 arrives
The lower space of motor 1 prevents lubricating oil from accumulating on 1 top of motor.In addition, by the setting of exhaust passage 121 and close song
Exhaust passage 121 can be blocked to avoid the balance weight 2 being mounted on rotor 12 at the position of axis 3, to guarantee exhaust passage 121
It is unobstructed.
Compressor 100 according to an embodiment of the present invention, by being arranged close to the exhaust passage 121 of crankshaft 3 on rotor 12,
And the venthole 51 on silencer cover 5 is close to the setting of crankshaft 3 and opposite with exhaust passage 121, it can make to be discharged out of silencer cover 5
The exhaust passage 121 that can be discharged on rotor 12 upwards by venthole 51 of refrigerant air-flow and flow up to 12 top of rotor
Space, effectively reduce the coolant quantity that the gap between stator 11 and shell 6 flows up, lubricating oil enable to pass through
Clearance backflow between stator 11 and shell 6 prevents lubricating oil from accumulating on 1 top of motor to the lower space of motor 1.Separately
Outside, on from first end face 21 to the direction of second end face 22, by by the end windward 25 of balance weight 2 towards leeward end 26
Inclination, can not only reduce fluid by end 25 windward around the resistance for flowing to second end face 22, and can avoid from 12 middle part of rotor
It is broken to reduce oil droplet caused by balance weight 2 rotates for 2 wall surface of oil droplet vertical direction toward impact balance weight carried in the refrigerant air-flow flowed up
Broken phenomenon guarantees the negligible amounts of small oil droplet in compressor 100, reduces by 100 oil spitting amount of compressor, thus can make compressor
100 have the advantages that efficiency is high, oil spitting amount is small.
Further, as shown in Fig. 2, exhaust passage 121 is multiple, the venthole 51 being spaced apart along 3 circumferential direction of crankshaft
For it is multiple and with multiple exhaust passages 121 correspond.Thus, it is possible to guarantee the refrigerant being discharged out of silencer cover 5 venthole 51
Air-flow largely passes through exhaust passage 121 into the upper space of upper runner motor 1, effectively reduce stator 11 and shell 6 it
Between the coolant quantity that flows up of gap, so that lubricating oil is passed through the clearance backflow between stator 11 and shell 6 to electricity
The lower space of machine 1 prevents lubricating oil from accumulating on 1 top of motor.
Certainly, the invention is not limited thereto, and the number of venthole 51 can be less than the number of exhaust passage 121, for example, scheming
2 and example shown in fig. 5 in, exhaust passage 121 be located on rotor 12 and close to crankshaft 3 be arranged, exhaust passage 121 is spaced apart
It is multiple, venthole 51 is located on silencer cover 5, and venthole 51 is connected to the centre bore 53 that crankshaft 3 on silencer cover 5 passes through, ventilation
Hole 51 is two.The refrigerant air-flow being discharged in venthole 51 can be directly discharged into exhaust passage 121, and be flowed into motor 1
Upper space in, effectively reduce the coolant quantity that the gap between stator 11 and shell 6 flows up, keep lubricating oil suitable
Benefit prevents lubricating oil from occurring on 1 top of motor by the lower space of the clearance backflow between stator 11 and shell 6 to motor 1
Accumulate.
Further, as shown in Fig. 3, Fig. 6 and Fig. 7, the diameter of crankshaft 3 is D1, the diameter of the cylinder 41 of compression mechanism 4
For D2, the upper surface of compression mechanism 4 is perspective plane, the outer contour of the orthographic projection of any two venthole 51 on the projection surface
Maximum distance is D3, and D1, D2, D3 meet: D3≤0.9 (D1+D2).Since the lower part (lower part as shown in Figure 3) of rotor 12 is set
There is balance weight 2, positioned at 0.8 (D1+D2)≤D5≤0.9 (D1+D2) of internal diameter D5 general satisfaction of the balance weight 12 of 12 lower part of rotor,
As D3≤0.9 (D1+D2), the oil droplet from the cold media gas being discharged in the venthole 51 of silencer cover 5 can be prevented with cold
When matchmaker flows upwardly into the exhaust passage 121 in rotor 12, hits and generate with the lower surface for the balance weight 2 for being located at 12 lower part of rotor
More small oil droplet, to reduce the oil spitting amount of compressor 100.
In some embodiments of the invention, as shown in Fig. 3, Fig. 8 and Fig. 9, the diameter of crankshaft 3 is D1, is set on silencer cover 5
There is venthole 51, crankshaft 3 passes through venthole 51, and the diameter of venthole 51 is D4, D1 and D4 satisfaction: D4 > D1.Refrigerant gas as a result,
Stream can the gap between the internal perisporium of venthole 51 and the periphery wall of crankshaft 3 be discharged, and flow up on rotor 12
In exhaust passage 121, by the space on 121 flow direction motor of exhaust passage, 1 top, effectively reduce between stator 11 and shell 6
The coolant quantity that flows up of gap, so that lubricating oil is passed through the clearance backflow between stator 11 and shell 6 to motor 1
Lower space, prevent lubricating oil from accumulating on 1 top of motor.
Further, as shown in figure 9, at venthole 51 be equipped with guide ring 52, guide ring 52 be located at the top of silencer cover 5 and
Circumferential direction along venthole 51 extends.Guide ring 52 can play certain guiding role, can make out of venthole 51
The refrigerant air-flow flowed out in gap between peripheral wall and the periphery wall of crankshaft 3 smoothly flows to the exhaust passage 121 on rotor 12
It is interior, and the space on 1 top of flow direction motor, the coolant quantity that the gap between stator 11 and shell 6 flows up is effectively reduced, is made
Lubricating oil can pass through the clearance backflow between stator 11 and shell 6 to the lower space of motor 1, prevent lubricating oil in electricity
Accumulate on 1 top of machine.
Further, as shown in figure 11, the angle windward between end 25 and first end face 21 is θ 4, and θ 4 meets: θ 4≤
75°.Experiment proves that end 25 is not only windward when the angle windward between end 25 and first end face 21 is less than or equal to 75 °
With preferable diversion effect, oil droplet atomization can also be reduced, reduce the oil spitting amount of compressor 100.
Optionally, as shown in figure 12, balance weight 2 is interior ring-side wall 23 close to the side wall of the rotation centerline of rotor 12, with
The opposite side wall of interior ring-side wall 23 is outer ring side wall 24.That is, radially inner direction outside to 12 diameter of rotor in rotor 12
On the direction of side, the two side walls face being spaced apart on balance weight 2 is respectively interior ring-side wall 23 and outer ring side wall 24.Such as Figure 12-figure
Shown in 16, end 25 includes inside grouping teaching 251 and outside grouping teaching 252 windward, and inside grouping teaching 251 is close to interior ring-side wall 23
And with the round and smooth connection of interior ring-side wall 23, outside grouping teaching 252 close to outer ring side wall 24 and with the round and smooth connection of outer ring side wall 24.Such as figure
Shown in 12, when fluid passes through outside grouping teaching 252, fluid will be flowed along direction shown in arrow f3, when in fluid process
When the grouping teaching 251 of side, fluid will be flowed along direction shown in arrow f1, and outside grouping teaching 252 can reduce fluid by meeting as a result,
Around the resistance for flowing to outer rim side wall 24, inside grouping teaching 251 can reduce fluid by end 25 windward around flowing to inner ring for wind end 25
The flow resistance of side wall 23.
Further, as shown in figure 12, end 25 further includes intermediate portion 253 windward windward, and intermediate portion 253 windward is connected to
Between inside grouping teaching 251 and outside grouping teaching 252, on from first end face 21 to the direction of second end face 22, centre is windward
Portion 253 is tilted towards leeward end 26.It should be noted that fluid will be along Figure 12 when fluid flows through intermediate portion 253 windward
The flowing of direction shown in middle arrow f2, thus intermediate portion 253 windward has the area windward for reducing balance weight 2, reduces windward
The effect of resistance, while intermediate portion 253 windward is tilted backwards along direction of rotation can reduce fluid by intermediate portion 253 windward around flowing to
The resistance of second end face 22.
Further, as shown in figure 12, intermediate portion 253 windward is configured to windward side, the surrounding of windward side respectively with
Institute's first end face 21, inside grouping teaching 251, second end face 22 and outside grouping teaching 252 connect.For example, as shown in fig. 7, windward
Face is configured to long and narrow quadrangle, to make it have preferable diversion effect, reduces oil droplet atomization, reduces compressor 100
Oil spitting amount.
Certainly, the invention is not limited thereto, and as shown in figure 16, the intersection of inside grouping teaching 251 and outside grouping teaching 252 is by structure
Cause intermediate portion 253 windward.Thus, it is possible to further decrease the area windward of balance weight 2, hindered windward so as to reduce
Power.It is worth understanding, the intersection of inside grouping teaching 251 and outside grouping teaching 252 can be with straight line, or curve.
In some embodiments of the invention, as shown in figure 14, intermediate angle between portion 253 and first end face 21 windward
Meet for θ 1, θ 1: 1≤60 ° of θ.Experiment proves that when intermediate angle windward between portion 253 and first end face 21 is less than or equal to
At 60 °, intermediate portion 253 windward not only has preferable diversion effect, can also reduce oil droplet atomization, reduce compressor 100
Oil spitting amount.
In some embodiments of the invention, as shown in figure 15, the angle between outside grouping teaching 252 and first end face 21
Meet for θ 2, θ 2: 2≤75 ° of θ.Experiment proves that when the angle between outside grouping teaching 252 and first end face 21 is less than or equal to
At 75 °, outside grouping teaching 252 not only has preferable diversion effect, can also reduce oil droplet atomization, reduce compressor 100
Oil spitting amount.
In some embodiments of the invention, the angle between inside grouping teaching 251 and first end face 21 is θ 3, and θ 3 is full
Foot: 3≤75 ° of θ.Experiment proves that when the angle between inside grouping teaching 251 and first end face 21 is less than or equal to 75 °, inside
Grouping teaching 251 not only has preferable diversion effect, can also reduce oil droplet atomization, reduce the oil spitting amount of compressor 100.
According to one embodiment of present invention, as shown in figure 13, windward the area of end 25 be a, balance weight 2 perpendicular to
The maximum cross-section area of its center bone line m is b, the value range of b and a ratio are as follows: b/a≤0.8.It should be noted that as schemed
Shown in 13, the center bone line of balance weight 2 is curve m, and the section perpendicular to center bone line m is n, and the maximum area of section n is b.
Experiment proves that end 25 not only has preferable diversion effect windward as b/a≤0.8, oil droplet atomization can also be reduced,
Reduce the oil spitting amount of compressor 100.
The compressor 100 of five specific embodiments according to the present invention is described below with reference to Fig. 1-Figure 16, it is described below to be
Illustratively, it is intended to be used to explain the present invention, and be not considered as limiting the invention.
Embodiment one
As shown in Fig. 1-Fig. 7, Figure 10 and Figure 11, compressor 100 according to an embodiment of the present invention, including motor 1, crankshaft 3,
Compression mechanism 4, silencer cover 5 and shell 6.
Specifically, as shown in Figure 1, motor 1 includes stator 11 and rotor 12,11 housing of stator is on rotor 12, rotor 12
It is equipped with exhaust passage 121 up and down, the upper surface of rotor 12 is equipped with balance weight 2.The upper end of crankshaft 3 and rotor 12 connect
It connects, exhaust passage 121 is arranged close to crankshaft 3.Silencer cover 5 is located on the upper surface of compression mechanism 4, and crankshaft 3 passes through silencer cover 5
It is connect with compression mechanism 4, wherein compression mechanism 4 includes upper bearing (metal) 42, lower bearing 43 and cylinder 41, and cylinder 41 is located at upper bearing (metal)
Between 42 and lower bearing 43.As shown in Figure 5-Figure 7, venthole 51 there are two being set on silencer cover 5, at least portion of two ventholes 51
Divide and be connected to the centre bore 53 that crankshaft 3 passes through, venthole 51 and exhaust passage 121 are opposite.It is arranged out of silencer cover 5 venthole 51
Refrigerant air-flow out can flow up to the space on 12 top of rotor by the exhaust passage 121 on rotor 12, effectively reduce
The coolant quantity that gap between stator 11 and shell 6 flows up, enable lubricating oil pass through stator 11 and shell 6 it
Between clearance backflow to the lower space of motor 1, prevent lubricating oil from accumulating on 1 top of motor.In addition, by exhaust passage
121 settings can block exhaust passage 121 at the position of crankshaft 3 to avoid the balance weight 2 being mounted on rotor 12, thus
Guarantee the unobstructed of exhaust passage 121.
Wherein, the diameter of crankshaft 3 is D1, and the diameter of the cylinder 41 of compression mechanism 4 is D2, and the external envelope circle of venthole 51 is straight
Diameter is that D3, D1, D2 and D3 meet D3≤0.9 (D1+D2).Since the lower part (lower part as shown in Figure 3) of rotor 12 is equipped with balance
Block 2, positioned at 0.8 (D1+D2)≤D5≤0.9 (D1+D2) of internal diameter D5 general satisfaction of the balance weight 12 of 12 lower part of rotor, when D3≤
When 0.9 (D1+D2), the oil droplet from the cold media gas being discharged in the venthole 51 of silencer cover 5 can be prevented upward with refrigerant
When flowing into the exhaust passage 121 in rotor 12, hits and generate more with the lower surface for the balance weight 2 for being located at 12 lower part of rotor
Small oil droplet, to reduce the oil spitting amount of compressor 100.
As shown in Fig. 4, Figure 10 and Figure 11, balance weight 2 has the first end face 21 and second end face 22 that are oppositely arranged, and first
End face 21 is suitable for connect with rotor 12, and the both ends on 2 extending direction of balance weight respectively end 25 and leeward end 26 windward,
End 25 is connected between first end face 21 and second end face 22 windward, from first end face 21 to the direction of second end face 22
On, end 25 is tilted towards leeward end 26 windward.As shown in Figure 10, arrow e is the direction that rotor 12 rotates, and rotor 12 can be with
Band dynamic balance weight 2 is rotated according to direction shown in arrow e, and leeward end 26 is located at the upstream of 12 direction of rotation of rotor, windward side
Portion 25 is located at the downstream of 12 direction of rotation of rotor.End 25 is connected between first end face 21 and second end face 22 windward, from
In first end face 21 to the direction of second end face 22, end 25 is tilted towards leeward end 26 windward.
Wherein, as shown in figure 11, the angle windward between end 25 and first end face 21 is θ 4, and θ 4 meets: 4≤75 ° of θ.
Experiment proves that end 25 not only has windward when the angle windward between end 25 and first end face 21 is less than or equal to 75 °
Preferable diversion effect can also reduce oil droplet atomization, reduce the oil spitting amount of compressor 100.
Embodiment two
As shown in Fig. 1-Fig. 4, Fig. 8, Figure 10 and Figure 11, the embodiment is roughly the same with the structure of embodiment one, wherein phase
Same component uses identical appended drawing reference, the difference is that only, in this embodiment, silencer cover 5 is equipped with venthole 51,
Crankshaft 3 passes through venthole 51, and the diameter of crankshaft 3 is D1, and the diameter of venthole 51 is that D4, D1 and D4 meet D4 > D1.Thus may be used
To guarantee that the refrigerant air-flow being discharged out of silencer cover 5 is discharged by the gap between venthole 51 and crankshaft 3 to exhaust passage 121
It is interior, and flow up to the space on 12 top of rotor, effectively reduce the gap between stator 11 and shell 6 flow up it is cold
Matchmaker's amount, enables lubricating oil to pass through the clearance backflow between stator 11 and shell 6 to the lower space of motor 1, prevents from moistening
Lubricating oil accumulates on 1 top of motor.
Embodiment three
As shown in Fig. 1-Fig. 4, Fig. 9-Figure 11, the embodiment is roughly the same with the two of embodiment structure, wherein identical
Component uses identical appended drawing reference, the difference is that only, in this embodiment, guide ring 52 is equipped at venthole 51, is led
Stream ring 52 is located at the top of silencer cover 5 and extends along the circumferential direction of venthole 51.Guide ring 52 can play certain guiding
Effect can make the refrigerant air-flow flowed out in the gap between the internal perisporium of venthole 51 and the periphery wall of crankshaft 3 smoothly
It flows in the exhaust passage 121 on rotor 12, and the space on 1 top of flow direction motor, effectively reduces between stator 11 and shell 6
The coolant quantity that flows up of gap, so that lubricating oil is passed through the clearance backflow between stator 11 and shell 6 to motor 1
Lower space, prevent lubricating oil from accumulating on 1 top of motor.
Example IV
As shown in Fig. 1-Fig. 7, Figure 12-Figure 15, the embodiment is roughly the same with the one of embodiment structure, wherein identical
Component uses identical appended drawing reference, the difference is that only, in this embodiment, balance weight 2 is in the rotation of rotor 12
The side wall of heart line is interior ring-side wall 23, and the side wall opposite with interior ring-side wall 23 is outer ring side wall 24, and end 25 includes inside windward
Grouping teaching 251 and outside grouping teaching 252, inside grouping teaching 251 close to interior ring-side wall 23 and with the round and smooth connection of interior ring-side wall 23, outside
Side grouping teaching 252 close to outer ring side wall 24 and with the round and smooth connection of outer ring side wall 24.Intermediate portion 253 windward is connected to inside grouping teaching
Between 251 and outside grouping teaching 252, on from first end face 21 to the direction of second end face 22, intermediate portion 253 windward is towards back
Wind end 26 tilts.Wherein, inside grouping teaching 251 and outside grouping teaching 252 are all formed as smooth curved surface.
It should be noted that as shown in figure 12, when fluid passes through outside grouping teaching 252, fluid will be along arrow f3 institute
The direction flowing shown, when fluid passes through inside grouping teaching 251, fluid will be flowed along direction shown in arrow f1, work as fluid
When by intermediate portion 253 windward, fluid will be flowed along direction shown in arrow f2, and outside grouping teaching 252 can reduce stream as a result,
By end 25 windward around the resistance for flowing to outer rim side wall 24, inside grouping teaching 251 can reduce fluid and be streamed by end 25 windward body
To the flow resistance of interior ring-side wall 23, intermediate portion 253 windward can not only reduce the area windward of balance weight 2, and reduction hinders windward
Power, while intermediate portion 253 windward is tilted backwards along direction of rotation can reduce fluid by intermediate portion 253 windward around flowing to second end face
22 resistance.
As shown in Figure 12 and Figure 13, intermediate portion 253 windward is configured to windward side, and windward side is configured to four long and narrow sides
Shape and its surrounding are connect with institute first end face 21, inside grouping teaching 251, second end face 22 and outside grouping teaching 252 respectively.By
This, can make it have preferable diversion effect, reduce oil droplet atomization, reduce the oil spitting amount of compressor 100.
Inside grouping teaching 251, the intermediate area of portion 253 and outside grouping teaching 252 windward are respectively a1, a2, a3, wherein a1
+ a2+a3=a, i.e. inside grouping teaching 251, intermediate the sum of area of 252 three of portion 253 and outside grouping teaching windward are windward side
The area a in portion 25.As shown in figure 13, the center bone line of balance weight 2 is curve m, the cutting perpendicular to center bone line m of balance weight 2
Face is n, and the maximum cross-section area of section n is b, the value range of b and a ratio are as follows: b/a≤0.8.As shown in 14 and Figure 15, in
Between angle windward between portion 253 and first end face 21 be θ 1, θ 1 meets: 1≤60 ° of θ；Outside grouping teaching 252 and first end face
Angle between 21 is θ 2, and θ 2 meets: 2≤75 ° of θ；Angle between inside grouping teaching 251 and first end face 21 is θ 3, and θ 3 is full
Foot: 3≤75 ° of θ.
Experiment proves that on from first end face 21 to the direction of second end face 22, by that will be set as end 25 windward
It is tilted towards leeward end 26, and makes inside grouping teaching 251, intermediate portion 253 and outside grouping teaching 252 and first end face windward
Angle between 21 meets respectively: 3≤75 ° of θ, 1≤60 ° of θ, 2≤75 ° of θ, makes the area a of end 25 windward and perpendicular to center
Ratio between the maximum cross-section area b of bone line m meets: b/a≤0.8.Fluid can be reduced as a result, by end 25 windward around flowing to
Second end face 22, interior ring-side wall 23, outer ring side wall 24 resistance, in addition, can avoid refrigerant since end 25 windward is integral inclined
2 wall surface of oil droplet vertical direction toward impact balance weight carried in air-flow reduces oil droplet caused by balance weight 2 rotates and is atomized, reduces compressor
Thus 100 oil spitting amounts can make compressor 100 have the advantages that efficiency is high, oil spitting amount is small.
Embodiment five
As shown in Fig. 1-Fig. 7, Figure 16, the embodiment is roughly the same with the four of embodiment structure, wherein identical component
Using identical appended drawing reference, the difference is that only, in this embodiment, inside grouping teaching 251 and outside grouping teaching 252
Intersection is configured to intermediate portion 253 windward.Thus, it is possible to the area windward of balance weight 2 be further decreased, so as to reduce
Frontal resistance avoids 2 wall surface of oil droplet vertical direction toward impact balance weight carried in refrigerant air-flow, reduces oil caused by balance weight 2 rotates
Drop atomization, reduces by 100 oil spitting amount of compressor, so as to make compressor 100 have the advantages that efficiency is high, oil spitting amount is small.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (13)
1. a kind of compressor characterized by comprising
Motor, the motor include stator and rotor, and for the stator housing on the rotor, it is logical that the rotor is equipped with exhaust
Road, the upper surface of the rotor are equipped with balance weight, and the balance weight has the first end face and second end face being oppositely arranged, institute
It states first end face to be suitable for connect with the rotor, and the respectively end and leeward windward of the both ends on the balance weight extending direction
End, the end windward are connected between the first end face and the second end face, from the first end face to described
On the direction of second end face, the end windward is towards the leeward sloped-end, rotation of the balance weight close to the rotor
The side wall for turning center line is interior ring-side wall, and the side wall opposite with the interior ring-side wall is outer ring side wall, and the end windward includes
Inside grouping teaching and outside grouping teaching, the inside grouping teaching close to the interior ring-side wall and with the interior round and smooth company of ring-side wall
Connect, the outside grouping teaching close to the outer ring side wall and with the round and smooth connection of outer ring side wall；
Crankshaft, the upper end of the crankshaft are connect with the rotor, and the exhaust passage is close to the crankshaft；
Compression mechanism, the compression mechanism are connect with the lower end of the crankshaft；
Silencer cover, the crankshaft pass through the silencer cover, and the silencer cover is located on the upper surface of the compression mechanism, described
Silencer cover is equipped with venthole, and the venthole is opposite with the exhaust passage.
2. compressor according to claim 1, which is characterized in that the exhaust passage is between the crankshaft circumferential direction
What is separated is multiple, and the venthole is multiple and corresponds with multiple exhaust passages.
3. compressor according to claim 2, which is characterized in that the diameter of the crankshaft is D1, the compression mechanism
The diameter of cylinder is D2,
The upper surface of the compression mechanism is perspective plane, orthographic projection of the venthole on the perspective plane described in any two it is outer
The maximum distance of contour line is D3, and the D1, the D2, the D3 meet: D3≤0.9 (D1+D2).
4. compressor according to claim 1, which is characterized in that the diameter of the crankshaft is D1,
The crankshaft passes through the venthole, and the diameter of the venthole is D4, the D1 and the D4 satisfaction: D4 > D1.
5. compressor according to claim 4, which is characterized in that be equipped with guide ring, the guide ring at the venthole
Positioned at the silencer cover top and along the circumferential direction of the venthole extend.
6. compressor according to claim 1, which is characterized in that the end windward further includes intermediate portion windward, described
Intermediate portion windward is connected between the inside grouping teaching and the outside grouping teaching, from the first end face to described second
On the direction of end face, the centre windward portion towards the leeward sloped-end.
7. compressor according to claim 6, which is characterized in that the friendship of the inside grouping teaching and the outside grouping teaching
Line is configured to centre portion windward.
8. compressor according to claim 6, which is characterized in that portion is configured to windward side windward for the centre, described
The surrounding of windward side connects with the first end face, the inside grouping teaching, the second end face and the outside grouping teaching respectively
It connects.
9. compressor according to claim 6, which is characterized in that the centre is windward between portion and the first end face
Angle is θ 1, and the θ 1 meets: 1≤60 ° of θ.
10. compressor according to claim 5, which is characterized in that between the outside grouping teaching and the first end face
Angle be θ 2, the θ 2 meets: 2≤75 ° of θ.
11. compressor according to claim 5, which is characterized in that between the inside grouping teaching and the first end face
Angle be θ 3, the θ 3 meets: 3≤75 ° of θ.
12. compressor according to claim 1, which is characterized in that between the end windward and the first end face
Angle is θ 4, and the θ 4 meets: 4≤75 ° of θ.
13. compressor according to claim 1, which is characterized in that the area of the end windward is a,
The maximum cross-section area perpendicular to its center bone line of the balance weight is b, the value range of the b and a ratio
Are as follows: b/a≤0.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610615459.1A CN106089726B (en) | 2016-07-29 | 2016-07-29 | Compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610615459.1A CN106089726B (en) | 2016-07-29 | 2016-07-29 | Compressor |
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| CN106089726A CN106089726A (en) | 2016-11-09 |
| CN106089726B true CN106089726B (en) | 2018-12-28 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6773890B2 (en) * | 2017-03-15 | 2020-10-21 | 東芝キヤリア株式会社 | Rotary compressor and refrigeration cycle equipment |
| CN111120332A (en) * | 2018-10-30 | 2020-05-08 | 安徽美芝制冷设备有限公司 | Silencer and rotary compressor with same |
| CN114183358B (en) * | 2021-12-08 | 2024-01-30 | 珠海凌达压缩机有限公司 | Compressor and air conditioner |
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| JPH04128591A (en) * | 1990-09-18 | 1992-04-30 | Mitsubishi Electric Corp | Sealed rotary compressor |
| JPH04134194A (en) * | 1990-09-27 | 1992-05-08 | Daikin Ind Ltd | Hermetic compressor |
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| JPH09151886A (en) * | 1995-11-29 | 1997-06-10 | Sanyo Electric Co Ltd | Hermetic type rotary compressor |
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| CN1862919A (en) * | 2005-05-10 | 2006-11-15 | 乐金电子(天津)电器有限公司 | Motor rotor counterbalance structure for compressor |
| JP4134194B2 (en) * | 2006-05-11 | 2008-08-13 | 日立マクセル株式会社 | Manufacturing method of resin molded body and electroless plating method |
| JP2009264175A (en) * | 2008-04-23 | 2009-11-12 | Mitsubishi Electric Corp | Refrigerant compressor |
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| CN106089726A (en) | 2016-11-09 |
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