CN205858702U - Compressor - Google Patents

Abstract

The utility model discloses a kind of compressor, including: motor, motor includes stator and rotor, it is enclosed within outside stator on rotor, rotor is provided with exhaust passage, the upper surface of rotor is provided with balance weight, balance weight has the first end face and the second end face being oppositely arranged, first end face is suitable to be connected with rotor, and the two ends on balance weight bearing of trend are respectively end and leeward end windward, end is connected between the first end face and the second end face windward, and on from the first end face to the direction of the second end face, end is towards leeward sloped-end windward；Bent axle, the upper end of bent axle is connected with rotor, and exhaust passage is near bent axle；Compression mechanism, compression mechanism is connected with the lower end of bent axle；Silencer cover, bent axle passes silencer cover, and silencer cover is located on the upper surface of compression mechanism, and silencer cover is provided with passage, and passage is relative with exhaust passage.According to compressor of the present utility model, the long-pending oil of compressor and the problem telling oil can be improved.

Description

Compressor

Technical field

This utility model relates to technical field of refrigeration equipment, especially relates to a kind of compressor.

Background technology

In correlation technique, enclosed rotary formula compressor is in operation process, and substantial amounts of lubricating oil is carried by coolant air-flow Entering motor upper space, separate at motor upper space, the lubricating oil separated is assembled on motor top, and along housing And reflux downwards in the gap between motor, when back-flow velocity is inadequate, long-pending oil will be formed on motor top；Do not separated is micro- Little oil droplet, discharges compressor with coolant air-flow, forms oil spitting amount, forms oil film at heat exchanger surface, produces the heat exchanger of air-conditioning Raw harmful effect, affects Performance for Air Conditioning Systems.

Utility model content

One of technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.To this end, this reality With novel proposition one compressor, described compressor has the advantage that the long-pending oil in motor top is few.

According to the compressor of this utility model embodiment, including: motor, described motor includes stator and rotor, described fixed Son is outer to be enclosed within described rotor, and described rotor is provided with exhaust passage, and the upper surface of described rotor is provided with balance weight, described flat Weighing apparatus block has the first end face and the second end face being oppositely arranged, and described first end face is suitable to be connected with described rotor, and described flat Two ends on weighing apparatus block bearing of trend are respectively end and leeward end the most windward, described end windward be connected to described first end face and Between described second end face, on from described first end face to the direction of described second end face, described end windward is towards described Leeward sloped-end；Bent axle, the upper end of described bent axle is connected with described rotor, and described exhaust passage is near described bent axle；Compression Mechanism, described compression mechanism is connected with the lower end of described bent axle；Silencer cover, described bent axle passes described silencer cover, described noise reduction Being located on the upper surface of described compression mechanism, described silencer cover is provided with passage, and described passage leads to described aerofluxus Road is relative.

According to the compressor of this utility model embodiment, by being arranged close to the exhaust passage of bent axle on rotor, and will Passage on silencer cover is arranged and relative with exhaust passage near bent axle, and the coolant air-flow that can make in silencer cover discharge can Upwards to be entered the exhaust passage on rotor by passage and to flow up to the space on rotor top, effectively reduce stator And the coolant quantity that the gap between housing flows up, enables lubricating oil to pass through the clearance backflow between stator and housing To the lower space of motor, prevent lubricating oil from accumulating on motor top.It addition, from the first end face to the side of the second end face Upwards, by by the end windward of balance weight towards leeward sloped-end, not only can reduce fluid and be streamed to by end windward The resistance of biend, and the oil droplet vertical direction toward impact balance carried the coolant air-flow flowed up in the middle part of rotor can be avoided Block wall, reduces balance weight and rotates the phenomenon of the Oil Droplet Breakup caused, it is ensured that the negligible amounts of the medium and small oil droplet of compressor, reduce pressure Contracting machine oil spitting amount, thus can make compressor have the advantage that efficiency is high, oil spitting amount is little.

According to embodiments more of the present utility model, described exhaust passage is spaced apart many along described bent axle circumferential direction Individual, described passage be multiple and with multiple described exhaust passages one_to_one corresponding.

In embodiments more of the present utility model, a diameter of D1 of described bent axle, the cylinder of described compression mechanism straight Footpath is D2, and the upper surface of described compression mechanism is perspective plane, passage orthographic projection on described perspective plane described in any two The maximum distance of outer contour be D3, described D1, described D2, described D3 meet: D3≤0.9 (D1+D2).

According to embodiments more of the present utility model, a diameter of D1 of described bent axle, described silencer cover is provided with passage, Described bent axle passes described passage, a diameter of D4 of described passage, described D1 and described D4 and meets: D4 ＞ D1.

In embodiments more of the present utility model, being provided with guide ring at described passage, described guide ring is positioned at described The top of silencer cover and the circumferential direction along described passage extend.

In embodiments more of the present utility model, described balance weight near the sidewall of the rotation centerline of described rotor is Interior ring-side wall, the sidewall relative with described interior ring-side wall is outer shroud sidewall, and described end windward includes inner side grouping teaching and outside Grouping teaching, described inner side grouping teaching is near described interior ring-side wall and round and smooth with described interior ring-side wall is connected, described outside grouping teaching Near described outer shroud sidewall and round and smooth with described outer shroud sidewall be connected.

In embodiments more of the present utility model, described end windward also includes portion windward, centre, and described centre is windward Portion is connected between described inner side grouping teaching and described outside grouping teaching, from described first end face to the side of described second end face Upwards, portion windward, described centre is towards described leeward sloped-end.

In embodiments more of the present utility model, the intersection of described inner side grouping teaching and described outside grouping teaching is constructed Become portion windward, described centre.

In embodiments more of the present utility model, portion windward, described centre is configured to windward side, described windward side Surrounding is connected with described first end face, described inner side grouping teaching, described second end face and described outside grouping teaching respectively.

In embodiments more of the present utility model, the angle between portion windward, described centre and described first end face is θ 1, described θ 1 meets: θ 1≤60 °.

In embodiments more of the present utility model, the angle between described outside grouping teaching and described first end face is θ 2, described θ 2 meets: θ 2≤75 °.

In embodiments more of the present utility model, the angle between described inner side grouping teaching and described first end face is θ 3, described θ 3 meets: θ 3≤75 °.

In embodiments more of the present utility model, the angle between described end windward and described first end face is θ 4, Described θ 4 meets: θ 4≤75 °.

In embodiments more of the present utility model, the area of described end windward is a, described balance weight be perpendicular to it The maximum cross-section area of center bone line is b, and the span of described b and described a ratio is: b/a≤0.8.

Accompanying drawing explanation

Fig. 1 is the structural representation of the compressor according to this utility model embodiment；

Fig. 2 is the internal structure schematic diagram of the compressor according to this utility model embodiment；

Fig. 3 is the profile of the compressor shown in Fig. 2；

Fig. 4 is the structural representation of the balance weight of the compressor according to this utility model embodiment；

Fig. 5 is the structural representation of the silencer cover of the compressor according to this utility model embodiment；

Fig. 6 is the structural representation of the silencer cover of the compressor according to this utility model embodiment；

Fig. 7 is the structural representation of the silencer cover of the compressor according to this utility model embodiment；

Fig. 8 is the structural representation of the silencer cover of the compressor according to this utility model embodiment；

Fig. 9 is the structural representation of the silencer cover of the compressor according to this utility model embodiment；

Figure 10 is the structural representation of the balance weight of the compressor according to this utility model embodiment；

Figure 11 is the sectional view of line A-A along Figure 10；

Figure 12 is the structural representation of the balance weight of the compressor according to this utility model embodiment；

Figure 13 is the structural representation of the balance weight of the compressor according to this utility model embodiment；

Figure 14 is the sectional view of line C-C along Figure 13；

Figure 15 is the sectional view of line B-B along Figure 13；

Figure 16 is the structural representation of the balance weight of the compressor according to this utility model embodiment.

Reference:

Compressor 100,

Motor 1, stator 11, rotor 12, exhaust passage 121,

Balance weight 2, the first end face 21, the second end face 22, interior ring-side wall 23, outer shroud sidewall 24,

End 25 windward, inner side grouping teaching 251, outside grouping teaching 252,

Portion 253 windward, centre,

Leeward end 26,

Bent axle 3,

Compression mechanism 4, cylinder 41, upper bearing (metal) 42, lower bearing 43,

Silencer cover 5, passage 51, guide ring 52, centre bore 53,

Housing 6,

Rotor direction of rotation e, center bone line m, the cross section n being perpendicular to its center bone line of balance weight,

Air flow direction f1, f2, f3.

Detailed description of the invention

Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings.Below by The embodiment being described with reference to the drawings is exemplary, it is intended to be used for explaining this utility model, and it is not intended that new to this practicality The restriction of type.

In description of the present utility model, it is to be understood that term " " center ", " on ", D score, "left", "right", Orientation or the position relationship of the instruction such as " interior ", " outward ", " circumferential " they are based on orientation shown in the drawings or position relationship, merely to It is easy to describe this utility model and simplification description rather than instruction or the device of hint indication or element must have specific side Position, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two Individual, three etc., unless otherwise expressly limited specifically.

In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " Gu Fixed " etc. term should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be Be mechanically connected, it is also possible to be electrical connection or each other can communication；Can be to be joined directly together, it is also possible to by the indirect phase of intermediary Even, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For this For the those of ordinary skill in field, above-mentioned term concrete meaning in this utility model can be understood as the case may be.

Below with reference to Fig. 1-Figure 16, the compressor 100 according to this utility model embodiment is described.

As shown in Fig. 1-Figure 16, according to the compressor 100 of this utility model embodiment, including: motor 1, bent axle 3, compression Mechanism 4 and silencer cover 5.

Specifically, motor 1 includes stator 11 and rotor 12, is enclosed within rotor 12 outside stator 11, rotor 12 row of being provided with Gas passage 121, the upper surface (upper surface as shown in Figure 1) of rotor 12 is provided with balance weight 2.As shown in Fig. 4, Figure 10-Figure 16, Balance weight 2 has the first end face 21 and the second end face 22 being oppositely arranged, and the first end face 21 is suitable to be connected with rotor 12, and balance Two ends on block 2 bearing of trend are respectively end 25 and leeward end 26 windward, and end 25 is connected to the first end face 21 He windward Between second end face 22, on the direction from first end face the 21 to the second end face 22, incline towards leeward end 26 in end 25 windward Tiltedly.On the one hand, fluid can be reduced by end 25 windward around the resistance flowing to the second end face 22；On the other hand, due to end windward 25 is integral inclined, can avoid oil droplet vertical direction toward impact balance weight 2 wall carried the coolant air-flow flowed up in the middle part of rotor 12 Face, reduces balance weight 2 and rotates the phenomenon of the Oil Droplet Breakup caused, it is ensured that the negligible amounts of the medium and small oil droplet of compressor 100, reduce pressure Contracting machine 100 oil spitting amount, thus can make compressor 100 have the advantage that efficiency is high, oil spitting amount is little.

As shown in Figure 10, arrow e be rotor 12 rotate direction, rotor 12 can band dynamic balance weight 2 according to shown in arrow e Direction rotate, leeward end 26 is positioned at the upstream of rotor 12 direction of rotation, and end 25 is positioned at rotor 12 direction of rotation windward Downstream.End 25 is connected between the first end face 21 and the second end face 22 windward, from first end face the 21 to the second end face 22 On direction, end 25 tilts towards leeward end 26 windward.As shown in figure 11, on direction from bottom to up, end 25 windward Tilt the most to the right.

The upper end (upper end as shown in Figure 1) of bent axle 3 is connected with rotor 12, and exhaust passage 121 is near bent axle 3, compressor Structure 4 is connected with the lower end (lower end as shown in Figure 1) of bent axle 3, and bent axle 3 is 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 provided with passage 51, passage 51 and exhaust passage 121 phase Right.It is to say, silencer cover 5 is provided with passage 51, passage 51 is near bent axle 3 and relative with exhaust passage 121.Thus, The coolant air-flow discharged in passage 51 can flow in exhaust passage 121 directly up, thus reduces stator 11 and housing 6 Between the coolant quantity that flows up of gap, the clearance backflow enabling lubricating oil to pass through between stator 11 and housing 6 arrives The lower space of motor 1, prevents lubricating oil from accumulating on motor 1 top.It addition, exhaust passage 121 is arranged bent with close The position of axle 3 can avoid the balance weight 2 being arranged on rotor 12 to block exhaust passage 121, thus ensures exhaust passage 121 Unobstructed.

Compressor 100 according to this utility model embodiment, by being arranged close to the exhaust passage of bent axle 3 on rotor 12 121, and the passage 51 on silencer cover 5 is arranged and relative with exhaust passage 121 near bent axle 3, can make in silencer cover 5 The coolant air-flow discharged can upwards be entered the exhaust passage 121 on rotor 12 by passage 51 and be flowed up to rotor 12 The space on top, effectively reduces the coolant quantity that the gap between stator 11 and housing 6 flows up, and enables lubricating oil smooth By the lower space of the clearance backflow between stator 11 and housing 6 to motor 1, prevent lubricating oil from occurring on motor 1 top long-pending Deposit.It addition, on the direction from first end face the 21 to the second end face 22, by by the end windward 25 of balance weight 2 towards leeward End 26 tilts, and not only can reduce fluid by end 25 windward around flowing to the resistance of the second end face 22, and can avoid from rotor Oil droplet vertical direction toward impact balance weight 2 wall carried in the coolant air-flow flowed up in the middle part of in the of 12, reduces what balance weight 2 rotation caused The phenomenon of Oil Droplet Breakup, it is ensured that the negligible amounts of the medium and small oil droplet of compressor 100, reduces compressor 100 oil spitting amount, thus can make pressure Contracting machine 100 has the advantage that efficiency is high, oil spitting amount is little.

Further, as in figure 2 it is shown, exhaust passage 121 is along spaced apart multiple of bent axle 3 circumferential direction, passage 51 For multiple and with multiple exhaust passages 121 one_to_one corresponding.Thus, it is possible to ensure the coolant discharged in silencer cover 5 passage 51 Air-flow major part by exhaust passage 121 in the upper space of upper runner motor 1, effectively reduce stator 11 and housing 6 it Between the coolant quantity that flows up of gap, enable the clearance backflow that lubricating oil passes through between stator 11 and housing 6 to electricity The lower space of machine 1, prevents lubricating oil from accumulating on motor 1 top.

Certainly, this utility model is not limited to this, and the number of passage 51 can be less than the number of exhaust passage 121, such as, In the example shown in Fig. 2 and Fig. 5, exhaust passage 121 is located on rotor 12 and arranges, between exhaust passage 121 is near bent axle 3 Separate is multiple, and passage 51 is located on silencer cover 5, and the centre bore 53 that passage 51 passes with bent axle 3 on silencer cover 5 connects, Passage 51 is two.The coolant air-flow discharged in passage 51 can be directly discharged in exhaust passage 121, and is flowed into electricity In the upper space of machine 1, effectively reduce the coolant quantity that the gap between stator 11 and housing 6 flows up, make lubricating oil energy Enough pass through the lower space to motor 1 of the clearance backflow between stator 11 and housing 6, prevent lubricating oil on motor 1 top Accumulate.

Further, as shown in Fig. 3, Fig. 6 and Fig. 7, a diameter of D1 of bent axle 3, 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 any two passage 51 orthographic projection on the projection surface Maximum distance is D3, and D1, D2, D3 meet: D3≤0.9 (D1+D2).Owing to the bottom (bottom as shown in Figure 3) of rotor 12 sets There is balance weight 2, be positioned at the internal diameter D5 general satisfaction 0.8 (D1+D2)≤D5≤0.9 (D1+D2) of the balance weight 12 of rotor 12 bottom, As D3≤0.9 (D1+D2), it is possible to prevent in the passage 51 of silencer cover 5 oil droplet the cold media gas discharged with cold When matchmaker flows upwardly into the exhaust passage 121 in rotor 12, clash into the lower surface of the balance weight 2 being positioned at rotor 12 bottom and produce More little oil droplet, thus reduce the oil spitting amount of compressor 100.

In embodiments more of the present utility model, as shown in Fig. 3, Fig. 8 and Fig. 9, a diameter of D1 of bent axle 3, silencer cover 5 Being provided with passage 51, bent axle 3 meets through passage 51, a diameter of D4, D1 and the D4 of passage 51: D4 ＞ D1.Thus, cold Gas stream can be discharged in the gap between the periphery wall of the internal perisporium of passage 51 and bent axle 3, and flows up to rotor 12 On exhaust passage 121 in, by the space on flow direction motor 1 top, exhaust passage 121, effectively reduce stator 11 and housing 6 Between the coolant quantity that flows up of gap, the clearance backflow enabling lubricating oil to pass through between stator 11 and housing 6 arrives The lower space of motor 1, prevents lubricating oil from accumulating on motor 1 top.

Further, as it is shown in figure 9, be provided with guide ring 52 at passage 51, guide ring 52 be positioned at silencer cover 5 top and Circumferential direction along passage 51 extends.Guide ring 52 can play certain guide effect, can make in passage 51 The coolant air-flow flowed out in gap between the periphery wall of perisporium and bent axle 3 flows to the exhaust passage 121 on rotor 12 smoothly In, and the space on flow direction motor 1 top, effectively reduce the coolant quantity that the gap between stator 11 and housing 6 flows up, make Lubricating oil can pass through the lower space to motor 1 of the clearance backflow between stator 11 and housing 6, prevents lubricating oil at electricity Machine 1 top is accumulated.

Further, as shown in figure 11, the angle between end 25 and the first end face 21 is θ 4 windward, and θ 4 meets: θ 4≤ 75°.Experiment proves that, when angle between end 25 and the first end face 21 is less than or equal to 75 ° windward, end 25 is not only windward There is preferable water conservancy diversion effect, it is also possible to reduce oil droplet atomization, reduce the oil spitting amount of compressor 100.

Alternatively, as shown in figure 12, balance weight 2 is interior ring-side wall 23 near the sidewall of the rotation centerline of rotor 12, with The sidewall that interior ring-side wall 23 is relative is outer shroud sidewall 24.It is to say, it is radially inner direction outside to rotor 12 footpath at rotor 12 On the direction of side, two side wall surfaces spaced apart on balance weight 2 are respectively interior ring-side wall 23 and outer shroud sidewall 24.Such as Figure 12-figure Shown in 16, end 25 includes inner side grouping teaching 251 and outside grouping teaching 252 windward, and inner side grouping teaching 251 is near interior ring-side wall 23 And round and smooth with interior ring-side wall 23 be connected, outside grouping teaching 252 is near outer shroud sidewall 24 and round and smooth with outer shroud sidewall 24 is connected.Such as figure Shown in 12, when fluid is through outside grouping teaching 252, fluid is by flowing along the direction shown in arrow f3, when fluid is through interior During the grouping teaching 251 of side, fluid will flow along the direction shown in arrow f1, and thus, outside grouping teaching 252 can reduce fluid by meeting Wind end 25 is around flowing to the resistance of outer rim side wall 24, and inner side grouping teaching 251 can reduce fluid by end 25 windward around flowing to internal ring The flow resistance of sidewall 23.

Further, as shown in figure 12, end 25 also includes portion 253 windward, centre windward, and portion 253 windward, centre is connected to Between inner side grouping teaching 251 and outside grouping teaching 252, on the direction from first end face the 21 to the second end face 22, centre is windward Portion 253 tilts towards leeward end 26.It should be noted that when fluid flows through portion 253 windward, centre, fluid will be along Figure 12 Direction flowing shown in middle arrow f2, thus middle portion 253 windward has the area windward reducing balance weight 2, reduces windward The effect of resistance, middle portion 253 windward tilts backwards along direction of rotation and can reduce fluid by portion 253 windward, centre around flowing to The resistance of the second end face 22.

Further, as shown in figure 12, portion 253 windward, centre is configured to windward side, the surrounding of windward side respectively with First end face 21, inner side grouping teaching the 251, second end face 22 and outside grouping teaching 252 connect.Such as, as it is shown in fig. 7, windward Face is configured to long and narrow tetragon, to make it have preferable water conservancy diversion effect, reduces oil droplet atomization, reduces compressor 100 Oil spitting amount.

Certainly, this utility model is not limited to this, as shown in figure 16, and inner side grouping teaching 251 and the intersection of outside grouping teaching 252 It is configured to portion 253 windward, centre.Thus, it is possible to reduce the area windward of balance weight 2 further, such that it is able to reduce windward Resistance.Being worth being understood by, the intersection of inner side grouping teaching 251 and outside grouping teaching 252 can be with straight line, it is also possible to for curve.

In embodiments more of the present utility model, as shown in figure 14, middle windward between portion 253 and the first end face 21 Angle is θ 1, and θ 1 meets: θ 1≤60 °.Experiment proves that, when centre, angle between portion 253 and the first end face 21 windward is less than During equal to 60 °, portion 253 windward, centre not only has preferable water conservancy diversion effect, it is also possible to reduces oil droplet atomization, reduces compressor The oil spitting amount of 100.

In embodiments more of the present utility model, as shown in figure 15, between outside grouping teaching 252 and the first end face 21 Angle is θ 2, and θ 2 meets: θ 2≤75 °.Experiment proves that, the angle between outside grouping teaching 252 and the first end face 21 is less than During equal to 75 °, outside grouping teaching 252 not only has preferable water conservancy diversion effect, it is also possible to reduces oil droplet atomization, reduces compressor The oil spitting amount of 100.

In embodiments more of the present utility model, the angle between inner side grouping teaching 251 and the first end face 21 is θ 3, θ 3 Meet: θ 3≤75 °.Experiment proves that, when the angle between inner side grouping teaching 251 and the first end face 21 is less than or equal to 75 °, interior Side grouping teaching 251 not only has preferable water conservancy diversion effect, it is also possible to reduces oil droplet atomization, reduces the oil spitting amount of compressor 100.

According to an embodiment of the present utility model, as shown in figure 13, the area of end 25 is a windward, hanging down of balance weight 2 The span that maximum cross-section area is b, b and a ratio of Zhi Yuqi center bone line m is: b/a≤0.8.It should be noted that As shown in figure 13, the center bone line of balance weight 2 is curve m, and the cross section being perpendicular to center bone line m is n, the maximum area of cross section n For b.Experiment proves that, when b/a≤0.8, end 25 not only has preferable water conservancy diversion effect windward, it is also possible to reduce oil droplet mist Change, reduce the oil spitting amount of compressor 100.

Below with reference to Fig. 1-Figure 16, the compressor 100 according to five specific embodiments of this utility model is described, described below Simply the most exemplary, it is intended to be used for explaining this utility model, and it is not intended that to restriction of the present utility model.

Embodiment one

As shown in Fig. 1-Fig. 7, Figure 10 and Figure 11, according to the compressor 100 of this utility model embodiment, including motor 1, song Axle 3, compression mechanism 4, silencer cover 5 and housing 6.

Specifically, as it is shown in figure 1, motor 1 includes stator 11 and rotor 12, it is enclosed within outside stator 11 on rotor 12, rotor 12 Being provided with the exhaust passage 121 of up/down perforation, the upper surface of rotor 12 is provided with balance weight 2.The upper end of bent axle 3 is with rotor 12 even Connecing, exhaust passage 121 is arranged near bent axle 3.Silencer cover 5 is located on the upper surface of compression mechanism 4, and bent axle 3 is through silencer cover 5 Mechanism 4 is connected with compression, and 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, silencer cover 5 is provided with two passages 51, at least portion of two passages 51 Dividing the centre bore 53 passed with bent axle 3 to connect, passage 51 is relative with exhaust passage 121.Arrange in the passage 51 of silencer cover 5 The coolant air-flow gone out can flow up to the space on rotor 12 top by the exhaust passage 121 on rotor 12, effectively reduces The coolant quantity that gap between stator 11 and housing 6 flows up, enable lubricating oil pass through stator 11 and housing 6 it Between clearance backflow to the lower space of motor 1, prevent lubricating oil from accumulating on motor 1 top.It addition, by exhaust passage 121 arrange the position with close bent axle 3 can avoid the balance weight 2 being arranged on rotor 12 to block exhaust passage 121, thus Ensure the unobstructed of exhaust passage 121.

Wherein, a diameter of D1 of bent axle 3, a diameter of D2 of the cylinder 41 of compression mechanism 4, the external envelope circle of passage 51 is straight Footpath is that D3, D1, D2 and D3 meet D3≤0.9 (D1+D2).Owing to the bottom (bottom as shown in Figure 3) of rotor 12 is provided with balance Block 2, is positioned at the internal diameter D5 general satisfaction 0.8 (D1+D2)≤D5≤0.9 (D1+D2) of the balance weight 12 of rotor 12 bottom, when D3≤ Time 0.9 (D1+D2), it is possible to prevent in the passage 51 of silencer cover 5 oil droplet the cold media gas discharged with coolant upwards When flowing into the exhaust passage 121 in rotor 12, clash into the lower surface of the balance weight 2 being positioned at rotor 12 bottom and produce more Little oil droplet, thus 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 the second end face 22 being oppositely arranged, and first End face 21 is suitable to be connected with rotor 12, and the two ends on balance weight 2 bearing of trend are respectively end 25 and leeward end 26 windward, End 25 is connected between the first end face 21 and the second end face 22 windward, in the direction from first end face the 21 to the second end face 22 On, end 25 tilts towards leeward end 26 windward.As shown in Figure 10, arrow e is the direction that rotor 12 rotates, and rotor 12 is permissible Rotating according to the direction shown in arrow e with dynamic balance weight 2, leeward end 26 is positioned at the upstream of rotor 12 direction of rotation, windward side Portion 25 is positioned at the downstream of rotor 12 direction of rotation.End 25 is connected between the first end face 21 and the second end face 22 windward, from On the direction of first end face the 21 to the second end face 22, end 25 tilts towards leeward end 26 windward.

Wherein, as shown in figure 11, the angle between end 25 and the first end face 21 is θ 4 windward, and θ 4 meets: θ 4≤75 °. Experiment proves that, when angle between end 25 and the first end face 21 is less than or equal to 75 ° windward, end 25 not only has windward Preferably water conservancy diversion effect, it is also possible to 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, this embodiment is roughly the same with the structure of embodiment one, Qi Zhongxiang With parts use identical reference, the difference is that only, in this embodiment, silencer cover 5 is provided with passage 51, Bent axle 3 is through passage 51, and a diameter of D1 of bent axle 3, a diameter of D4, D1 and the D4 of passage 51 meet D4 ＞ D1.Thus may be used To ensure that the coolant air-flow discharged in silencer cover 5 is entered to exhaust passage 121 by the gap between passage 51 and bent axle 3 In, and flow up to the space on rotor 12 top, effectively reduce that the gap between stator 11 and housing 6 flows up is cold Matchmaker measures, and enables the clearance backflow that lubricating oil passes through between stator 11 and housing 6 to the lower space of motor 1, prevents profit Lubricating oil accumulates on motor 1 top.

Embodiment three

As shown in Fig. 1-Fig. 4, Fig. 9-Figure 11, this embodiment is roughly the same with the structure of the two of embodiment, the most identical Parts use identical reference, the difference is that only, in this embodiment, are provided with guide ring 52, lead at passage 51 Stream ring 52 be positioned at silencer cover 5 top and along passage 51 circumferential direction extend.Guide ring 52 can play certain guiding Effect, the coolant air-flow flowed out in can making the gap between the internal perisporium from passage 51 and the periphery wall of bent axle 3 is smoothly Flow in the exhaust passage 121 on rotor 12, and the space on flow direction motor 1 top, effectively reduce between stator 11 and housing 6 The coolant quantity that flows up of gap, enable the clearance backflow that lubricating oil passes through between stator 11 and housing 6 to motor 1 Lower space, prevent lubricating oil from accumulating on motor 1 top.

Embodiment four

As shown in Fig. 1-Fig. 7, Figure 12-Figure 15, this embodiment is roughly the same with the structure of the one of embodiment, the most identical Parts use identical reference, the difference is that only, in this embodiment, balance weight 2 is in the rotation of rotor 12 The sidewall of heart line is interior ring-side wall 23, and the sidewall relative with interior ring-side wall 23 is outer shroud sidewall 24, and end 25 includes inner side windward Grouping teaching 251 and outside grouping teaching 252, inner side grouping teaching 251 is near interior ring-side wall 23 and round and smooth with interior ring-side wall 23 is connected, outward Side grouping teaching 252 is near outer shroud sidewall 24 and round and smooth with outer shroud sidewall 24 is connected.Portion 253 windward, centre is connected to inner side grouping teaching Between 251 and outside grouping teaching 252, on the direction from first end face the 21 to the second end face 22, portion 253 windward, centre is towards the back of the body Wind end 26 tilts.Wherein, inner side 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 is through outside grouping teaching 252, fluid will be along arrow f3 institute The direction flowing shown, when fluid is through inner side grouping teaching 251, fluid, by flowing along the direction shown in arrow f1, works as fluid When portion 253 windward, centre, fluid will flow along the direction shown in arrow f2, and thus, outside grouping teaching 252 can reduce stream Body is by end 25 windward around flowing to the resistance of outer rim side wall 24, and inner side grouping teaching 251 can reduce fluid and be streamed by end 25 windward To the flow resistance of interior ring-side wall 23, middle portion 253 windward not only can reduce the area windward of balance weight 2, reduces and hinders windward Power, middle portion 253 windward tilts backwards along direction of rotation and can reduce fluid by portion 253 windward, centre around flowing to the second end face The resistance of 22.

As shown in Figure 12 and Figure 13, portion 253 windward, centre is configured to windward side, and windward side is configured to four long and narrow limits Shape and its surrounding are connected with the first end face 21, inner side grouping teaching the 251, second end face 22 and outside grouping teaching 252 respectively.By This, can make it have preferable water conservancy diversion effect, reduces oil droplet atomization, reduces the oil spitting amount of compressor 100.

Inner side grouping teaching 251, the area of middle portion 253 and outside grouping teaching 252 windward are respectively a1, a2, a3, wherein a1 + a2+a3=a, i.e. inner side grouping teaching 251, the area sum of middle portion 253 and outside grouping teaching 252 three 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, and the center that the is perpendicular to bone line m of balance weight 2 cuts Face is n, and the span that maximum cross-section area is b, b and a ratio of cross section n is: b/a≤0.8.As shown in 14 and Figure 15, in Between windward angle between portion 253 and the first end face 21 be θ 1, θ 1 meets: θ 1≤60 °；Outside grouping teaching 252 and the first end face Angle between 21 is θ 2, and θ 2 meets: θ 2≤75 °；Angle between inner side grouping teaching 251 and the first end face 21 is θ 3, and θ 3 is full Foot: θ 3≤75 °.

Experiment proves that, on the direction from first end face the 21 to the second end face 22, by being set to end 25 windward Tilt towards leeward end 26, and make grouping teaching 251, centre portion 253 windward, inner side and outside grouping teaching 252 and the first end face Angle between 21 meets respectively: θ 3≤75 °, θ 1≤60 °, θ 2≤75 °, makes the area a of end 25 windward and is perpendicular to center Ratio between the maximum cross-section area b of bone line m meets: b/a≤0.8.Thus, fluid can be reduced by end 25 windward around flowing to Second end face 22, interior ring-side wall 23, the resistance of outer shroud sidewall 24, further, since end 25 is integral inclined windward, can avoid coolant Oil droplet vertical direction toward impact balance weight 2 wall carried in air-flow, reduces balance weight 2 and rotates the oil droplet atomization caused, reduce compressor 100 oil spitting amounts, thus can make compressor 100 have the advantage that efficiency is high, oil spitting amount is little.

Embodiment five

As shown in Fig. 1-Fig. 7, Figure 16, the parts that this embodiment is roughly the same, the most identical with the structure of the four of embodiment Use identical reference, the difference is that only, in this embodiment, inner side grouping teaching 251 and outside grouping teaching 252 Intersection is configured to portion 253 windward, centre.Thus, it is possible to reduce the area windward of balance weight 2 further, such that it is able to reduce Frontal resistance, it is to avoid oil droplet vertical direction toward impact balance weight 2 wall carried in coolant air-flow, reduces balance weight 2 and rotates the oil caused Drip atomization, reduce compressor 100 oil spitting amount, thus compressor 100 can be made to have the advantage that efficiency is high, oil spitting amount is little.

In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term State and be necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature are permissible One or more embodiment in office or example combine in an appropriate manner.Additionally, in the case of the most conflicting, this area Technical staff the feature of the different embodiments described in this specification or example and different embodiment or example can be entered Row combines and combination.

Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-described embodiment is Exemplary, it is impossible to it is interpreted as that those of ordinary skill in the art is in scope of the present utility model to restriction of the present utility model In above-described embodiment can be changed, revise, replace and modification.

Claims (14)

1. a compressor, it is characterised in that including:

Motor, described motor includes stator and rotor, is enclosed within described rotor outside described stator, and described rotor is provided with aerofluxus and leads to Road, the upper surface of described rotor is provided with balance weight, and described balance weight has the first end face and the second end face being oppositely arranged, institute State the first end face to be suitable to be connected with described rotor, and the two ends on described balance weight bearing of trend are respectively end and leeward the most windward End, described end windward is connected between described first end face and described second end face, from described first end face to described On the direction of the second end face, described end windward is towards described leeward sloped-end；

Bent axle, the upper end of described bent axle is connected with described rotor, and described exhaust passage is near described bent axle；

Compression mechanism, described compression mechanism is connected with the lower end of described bent axle；

Silencer cover, described bent axle passes described silencer cover, and described silencer cover is located on the upper surface of described compression mechanism, described Silencer cover is provided with passage, and described passage is relative with described exhaust passage.

Compressor the most according to claim 1, it is characterised in that described exhaust passage is along between described bent axle circumferential direction Separate is multiple, described passage be multiple and with multiple described exhaust passages one_to_one corresponding.

Compressor the most according to claim 2, it is characterised in that a diameter of D1 of described bent axle, described compression mechanism A diameter of D2 of cylinder,

The upper surface of described compression mechanism is perspective plane, outside passage orthographic projection on described perspective plane described in any two The maximum distance of contour line is D3, and described D1, described D2, described D3 meet: D3≤0.9 (D1+D2).

Compressor the most according to claim 1, it is characterised in that a diameter of D1 of described bent axle,

Described silencer cover is provided with passage, and described bent axle passes described passage, a diameter of D4 of described passage, described D1 Meet with described D4: D4 ＞ D1.

Compressor the most according to claim 4, it is characterised in that be provided with guide ring, described guide ring at described passage Be positioned at described silencer cover top and along described passage circumferential direction extend.

Compressor the most according to claim 1, it is characterised in that described balance weight is near the rotation centerline of described rotor Sidewall be interior ring-side wall, the sidewall relative with described interior ring-side wall is outer shroud sidewall,

Described end windward includes inner side grouping teaching and outside grouping teaching, described inner side grouping teaching near described interior ring-side wall and with The described round and smooth connection of interior ring-side wall, described outside grouping teaching is near described outer shroud sidewall and round and smooth with described outer shroud sidewall is connected.

Compressor the most according to claim 6, it is characterised in that described end windward also includes portion windward, centre, described Portion windward, centre is connected between described inner side grouping teaching and described outside grouping teaching, from described first end face to described second On the direction of end face, portion windward, described centre is towards described leeward sloped-end.

Compressor the most according to claim 7, it is characterised in that described inner side grouping teaching and the friendship of described outside grouping teaching Line is configured to portion windward, described centre.

Compressor the most according to claim 7, it is characterised in that portion windward, described centre is configured to windward side, described The surrounding of windward side is respectively with described first end face, described inner side grouping teaching, described second end face and described outside grouping teaching even Connect.

Compressor the most according to claim 7, it is characterised in that between portion windward, described centre and described first end face Angle be θ 1, described θ 1 meets: θ 1≤60 °.

11. compressors according to claim 6, it is characterised in that between described outside grouping teaching and described first end face Angle be θ 2, described θ 2 meets: θ 2≤75 °.

12. compressors according to claim 6, it is characterised in that between described inner side grouping teaching and described first end face Angle be θ 3, described θ 3 meets: θ 3≤75 °.

13. compressors according to claim 1, it is characterised in that between described end windward and described first end face Angle is θ 4, and described θ 4 meets: θ 4≤75 °.

14. compressors according to claim 1, it is characterised in that the area of described end windward is a,

The maximum cross-section area being perpendicular to its center bone line of described balance weight is b, described b and the span of described a ratio For: b/a≤0.8.