WO2018196485A1

WO2018196485A1 - Upright compressor

Info

Publication number: WO2018196485A1
Application number: PCT/CN2018/078313
Authority: WO
Inventors: 宋雪峰; 王玉强; 牟英涛
Original assignee: 上海海立新能源技术有限公司
Priority date: 2017-04-28
Filing date: 2018-03-07
Publication date: 2018-11-01
Also published as: CN106949049B; CN106949049A

Abstract

Provided is an upright compressor, comprising a housing (3), which housing (3) is provided with a first opening; a compression mechanism comprising a static scroll plate (2), comprising a low-pressure side (202) provided with scroll teeth (201) and a high-pressure side (206) facing away from the scroll teeth (201), wherein the low-pressure side (202) of the static scroll plate (2) is opposite the first opening of the housing (3) so as to form an accommodation space; a movable scroll plate (15), which is located in the accommodation space, wherein a side of the movable scroll plate (15) provided with scroll teeth (1501) is opposite the scroll teeth (201) of the static scroll plate (2), and the scroll teeth (201) of the static scroll plate (2) and the scroll teeth (1501) of the movable scroll plate (15) form a compression cavity; and an electric motor mechanism, which comprises an electric motor rotor (20) and an electric motor stator (12), and the electric motor mechanism is located in the accommodation space, and drives the movable scroll plate (15) to rotate relative to the static scroll plate (2), so as to compress refrigerant in the compression cavity. The compressor can improve the reliability and the occupied space utilization rate of the compressor.

Description

Vertical compressor

Technical field

The present invention relates to the field of compressors, and more particularly to a vertical compressor for a vehicle.

Background technique

The existing scroll compressors for vehicles have the following characteristics and disadvantages:

1) Basically, the horizontal structure, that is, the shaft drive mechanism and the pump body are installed horizontally. Compared with the vertical compressor, the disadvantage of the horizontal compressor is that it is difficult to form a stable lubricating oil pool inside the compressor. It is difficult to recycle and lubricate the oil, the oil discharge of the compressor is large, and if solid impurities enter the compression. In the machine, impurities easily cause damage to the pump parts as the refrigerant flows into the pump body.

2) The die-cast aluminum alloy shell blank is used to obtain the finished shell by machining more (the machining part includes the end face of the casing, the inner hole of the casing and the motor, and the bearing seat hole and the end face, etc.). Since the die-casting part is likely to generate air holes, if the machining part of the die-casting housing has a large area or a large number of parts, the air hole may be penetrated during the processing, resulting in poor airtightness of the housing.

3) The compressor suction or exhaust port is located on the cast part. Since ordinary cast aluminum alloy parts are not high in material strength and compactness compared with high-strength aluminum alloys such as forging or extrusion casting, the thread of the suction or exhaust pressure plate is easily broken.

4) The external structure of the existing compressor is basically a cylinder type. Although there are some narrow spaces around the compressor body when it is installed on the vehicle, it is difficult to arrange other components. Therefore, the utilization efficiency of the installation space is not high.

Summary of the invention

SUMMARY OF THE INVENTION In order to overcome the deficiencies of the prior art described above, the present invention provides an electric vertical compressor for a vehicle which can improve the reliability of the compressor and the utilization of the space occupied by the compressor.

The present invention provides a vertical compressor comprising: a housing having a first opening; and a compression mechanism comprising: a fixed scroll including a low pressure side provided with a wrap and facing away from the wrap a high pressure side, the low pressure side of the fixed scroll is opposite to the first opening of the housing to form an accommodating space; the movable scroll is located in the accommodating space, and the movable vortex a side of the disk with a wrap is opposite to a low pressure side of the fixed scroll, and a wrap of the fixed scroll forms a compression chamber with a wrap of the orbiting scroll; a motor mechanism including a motor rotor And a motor stator, the motor mechanism is located in the accommodating space, and drives the orbiting scroll to rotate relative to the fixed scroll to compress the refrigerant in the compression chamber.

Compared with the prior art, the present invention has the following advantages:

1) With the vertical structure, a stable lubricating oil pool can be formed inside the compressor, and it is difficult to recycle and lubricate the lubricating oil, and the components in the compressor are not prone to friction damage.

2) The static scroll of the wear-resistant high-strength aluminum alloy is used as a part of the compressor casing, and the suction port or the exhaust port of the compressor is arranged thereon to improve the airtightness of the compressor. The suction or exhaust port of the compressor is located on the fixed scroll of the wear-resistant high-strength aluminum alloy. Due to its high material strength and compactness, the thread of the suction or exhaust platen is not easily damaged.

3) The shape of the compressor is a rectangular parallelepiped. Under the premise of keeping the volume of the overall structure of the compressor unchanged, the shape of the rectangular parallelepiped is smaller than the installation space occupied by the cylindrical shape, and the utilization efficiency of the installation space is higher.

4) The lubricating oil pool of the compressor is located at the bottom and the suction, compression and exhaust chambers are located at the top. Compared with the horizontal structure compressor, it is easier to isolate the refrigerant circulation and the oil circulation path in the compressor, combined with the oil hood. The probability of lubricating oil flowing out of the compressor with the refrigerant can be further reduced, and the utilization rate of the oil in the compressor can be improved.

DRAWINGS

The above and other features and advantages of the present invention will become more apparent from the detailed description of the exemplary embodiments.

FIG. 1 shows a perspective view of a compressor in accordance with an embodiment of the present invention.

2 shows a cross-sectional view of a compressor in accordance with an embodiment of the present invention.

Figure 3 is a partial view F of Figure 2.

Figure 4 is a partial view G of Figure 2.

Figure 5 shows a front view of a compressor in accordance with an embodiment of the present invention.

Fig. 6 is a cross-sectional view taken along line A-A of Fig. 5;

Fig. 7 is a cross-sectional view taken along line B-B of Fig. 5;

Figure 8 shows an exploded view of a compressor housing in accordance with an embodiment of the present invention.

Figure 9 shows a front view of a compressor housing in accordance with an embodiment of the present invention.

Figure 10 is a cross-sectional view taken along line C-C of Figure 9;

Figure 11 shows a perspective view of an upper bracket-motor mechanism-lower bracket assembly in accordance with an embodiment of the present invention.

Figure 12 shows a bottom view of the upper bracket-motor mechanism-lower bracket assembly in accordance with an embodiment of the present invention.

Figure 13 is a cross-sectional view taken along line D-D of Figure 12;

Figure 14 shows a bottom view of the interior of a compressor housing in accordance with an embodiment of the present invention.

Fig. 15 is a sectional view taken along line E-E of Fig. 14;

Figure 16 is a perspective view showing a perspective view of an upper bracket according to an embodiment of the present invention.

Figure 17 is a cross-sectional view showing the upper bracket-motor mechanism-lower bracket assembly in accordance with another embodiment of the present invention.

Figure 18 is a partial view T of Figure 17.

Figure 19 is a perspective view of the internal components of the compressor housing in accordance with yet another embodiment of the present invention.

Figure 20 shows a cross-sectional view of a compressor in accordance with yet another embodiment of the present invention.

Figure 21 is a partial view O of Figure 20.

Figure 22 shows a perspective view of a terminal in accordance with yet another embodiment of the present invention.

Figure 23 shows a cross-sectional view of a compressor in accordance with an embodiment of the present invention.

Figure 24 shows a front view of an eccentric crankshaft in accordance with an embodiment of the present invention.

Figure 25 is a cross-sectional view taken along line Q-Q of Figure 24;

Figure 26 is a partial view M of Figure 23.

Figure 27 is a partial view L of Figure 23.

Figure 28 is a perspective view of a lower bracket in accordance with an embodiment of the present invention.

Figure 29 shows a bottom view of the internal components of the housing in accordance with an embodiment of the present invention.

Figure 30 illustrates a bottom view of the internal components of the housing without the oil pump end plate installed in accordance with an embodiment of the present invention.

31 and 32 respectively show perspective views of two angles of view of an oil pump in accordance with an embodiment of the present invention.

Figure 33 shows a perspective view of another perspective view of the upper bracket in accordance with an embodiment of the present invention.

Figure 34 is a schematic view showing the assembly of the upper bracket-anti-rotation mechanism according to an embodiment of the present invention.

Figure 35 shows a perspective view of a movable scroll according to an embodiment of the present invention.

Figure 36 shows a bottom view of a movable scroll in accordance with an embodiment of the present invention.

Figure 37 shows a perspective view of an anti-rotation mechanism in accordance with an embodiment of the invention.

Figure 38 is a schematic view showing the assembly of an anti-rotation mechanism-wearing gasket according to an embodiment of the present invention.

Figure 39 shows a schematic view of the wear pad-moving scroll assembly in accordance with an embodiment of the present invention.

Figure 40 shows a schematic view of an oil return pipe assembly in accordance with an embodiment of the present invention.

Figure 41 is a diagram showing the relationship between a refrigerant circulation path and a return pipe installation position according to an embodiment of the present invention.

Figure 42 is a schematic view showing the assembly of an oil hood according to an embodiment of the present invention.

Figure 43 shows the upper and lower oil hoods of Figure 42.

Fig. 44 is a view showing the assembly of another oil hood according to an embodiment of the present invention.

Figure 45 shows the upper and lower oil hoods of Figure 44.

detailed description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be embodied in a variety of forms and should not be construed as being limited to the embodiments set forth herein. To those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and a repetitive description thereof will be omitted.

In order to improve the defects of the prior art, the present invention provides a vertical compressor, preferably a scroll compressor for an electric vehicle, but the compressor provided by the present invention is not limited to use in an electric vehicle. The compressor provided by the invention has a vertical structure, that is, the shaft system transmission mechanism and the scroll pump body axis are arranged vertically.

A specific embodiment of the present invention will first be described with reference to Figs.

In the present embodiment, the vertical compressor includes a housing 3, a compression mechanism including the fixed scroll 2 and the movable scroll 15, and a motor mechanism. Preferably, the vertical compressor further includes an upper cover 1.

The housing 3 has a first opening. Optionally, the housing 3 is a cast piece. The housing 3 includes a retaining wall 308 that divides the housing space into a low pressure chamber 309 and a controller chamber 302. The low pressure chamber 309 houses the motor mechanism. The controller cavity 302 is provided with a second opening. The vertical compressor also includes a controller chamber cover 4 and an electronic control unit. The controller chamber cover 4 seals the second opening. Specifically, the maker chamber cover 4 and the housing 3 are sealed and fastened by a seal ring 9 (or a gasket, or a sealant) and a bolt 10. The electronic control unit is disposed within the controller cavity 302 between the controller chamber cover 4 and the retaining wall. Preferably, the retaining wall 308 is provided with a cavity 305 that opens toward the controller cavity 302. The electronic control component optionally includes a first electronic control component and a second electrical control component. The first electronic control component is received within the cavity 305. The first electronic control component includes, but is not limited to, one or more of the following components: capacitors, inductors, and relays. The second electronic control component is in contact with a portion of the retaining wall 308 that is disposed outside the cavity 305. The second electronic control component includes a power component. Specifically, the position where the cavity 305 is disposed does not interfere with the components in the low pressure cavity 309 on the side of the low pressure cavity 309, and the portion of the power component and the retaining wall 308 of the housing 3 is not provided with the cavity 305 on the controller cavity 302 side. In combination, the refrigerant flowing in from the suction chamber 203 in the low pressure chamber 309 flows through the retaining wall 308, and the refrigerant absorbs heat radiated from the power unit to cool the power unit. Thus, the excess space in the low pressure chamber 309 is divided by the retaining wall 308 of the casing 3 for accommodating the electronic control unit to reduce the width L2 of the portion of the controller chamber 302, thereby miniaturizing the vertical scroll compressor. The remaining second electronic control components not disposed in the cavity 305 may not be attached to the retaining wall 308.

The fixed scroll 2 includes a low pressure side 202 provided with a wrap 201 and a high pressure side 206 facing away from the wrap 201. The low pressure side 202 of the fixed scroll 2 is opposed to the first opening of the housing 3 to form an accommodation space. Preferably, the housing 3 and the accommodating space formed by the low pressure side 202 of the fixed scroll 2 are optionally cuboids. However, the present invention is not limited thereto, and the accommodation space may be, for example, a cylinder-like shape, a cube-like shape, or the like. Alternatively, the housing 3 and the fixed scroll 2 are sealed and fastened by a sealing ring 7 (or a gasket, or a sealant) and a bolt 8. Preferably, the fixed scroll is a wear-resistant high-strength aluminum alloy member, such as a forged aluminum alloy, an extruded aluminum alloy, or the like (wherein the strength and compactness of the high-strength aluminum alloy member are superior to those of the ordinary cast member). Optionally, one or more mounting

legs

207, 303 are also provided on the fixed scroll 2 and the housing 3 to mount the compressor in the vehicle.

A high pressure chamber 2014 is formed between the upper cover 1 and the high pressure side 206 of the fixed scroll 2. An exhaust valve plate 30 and an exhaust baffle are mounted in the high pressure chamber 2014. Alternatively, the sealing and fastening of the upper cover 1 and the fixed scroll 2 are achieved by a sealing ring 5 (or a gasket, or a sealant) and a bolt 6. The low pressure side 202 of the fixed scroll 2 is also formed with an intake chamber 203. The fixed scroll 2 is also provided with an exhaust port 2012 communicating with the high pressure chamber 2014 and an intake port 2010 communicating with the intake chamber 203. The fixed scroll 2 is also provided with an intake screw hole 2011 and an exhaust threaded hole. The suction chamber 203 is in communication with the suction port 2010. In other words, the high-strength aluminum alloy static scroll 2 is a part of the compressor casing, and the compressor intake port 2010 and the exhaust port 2012 are both provided on the fixed scroll 2. Since the strength and compactness of the material of the high-strength aluminum alloy, such as forging or extrusion casting, are superior to those of the casting, the airtightness and the thread strength of the suction port 2010 and the exhaust port 2012 are better. At the same time, the machined portion and the machined area of the cast casing 3 are less, and the airtightness of the casing 3 is better, thereby improving the airtightness of the whole machine.

The movable scroll 15 is located in the accommodating space. The side of the movable scroll 15 on which the wrap 1501 is disposed is opposed to the low pressure side 202 of the fixed scroll 2, and the wrap 201 of the fixed scroll 2 and the wrap 1501 of the movable scroll 15 form a compression chamber.

The motor mechanism includes a motor rotor 20 and a motor stator 12. The motor mechanism is located in the low pressure chamber 309. The motor mechanism is used to drive the orbiting scroll 15 to rotate relative to the fixed scroll 2 to compress the refrigerant in the compression chamber.

Specifically, the refrigerant refrigerant passage is: the refrigerant enters the suction chamber 203 through the suction port 2010, the suction chamber 203 and the low pressure chamber 309 communicate, and the refrigerant flows into the low pressure side 202 of the fixed scroll after passing through the low pressure chamber 309, after which The compressed chamber that flows into the fixed scroll wrap 201 and the orbiting scroll wrap 1501 is compressed, and the compressed refrigerant flows into the high pressure chamber 2014 through the exhaust hole 209, and then the refrigerant is discharged into communication with the high pressure chamber 2014. Exhaust port in 2012. Further, the refrigerant flows from the suction port 2010 of the fixed scroll 2 into the vertical compressor, and flows toward the bottom wall of the casing 3 away from the fixed scroll, and the refrigerant passes through the retaining wall 308 of the casing 3 to face the controller chamber. The electronic control unit in 302 is cooled, and the refrigerant flows through the motor mechanism to cool the motor mechanism, and then flows into the compression chamber formed by the fixed scroll 2 and the movable scroll 15.

As described above, the compressor provided by the present invention has a vertical structure. Since the space of the housing is rectangular, the length of the whole machine is shorter than that of the horizontal compressor, and the original level is maintained at the height, and is occupied when installed in the automobile. There is less lateral installation space, and the bottom of the low pressure chamber 309 of the compressor can form a smoother lubricating oil pool 31, which has better lubrication effect, improves the reliability of the compressor, and reduces the oil discharge of the compressor. In addition, if solid impurities enter the compressor through the suction port 2010 and the suction chamber 203, impurities are preferentially deposited in the lower portion of the low pressure chamber 309, so that impurities enter the pump body compression chamber composed of the fixed scroll 2 and the movable scroll 15. The probability of this is small, which greatly reduces the risk of damage to the pump body due to the ingress of impurities.

Optionally, in the embodiment, the compressor further includes an upper bracket 11 and a lower bracket 13. The upper bracket 11 and the lower bracket 13 are provided with through holes for the bearing mechanism to pass through.

The upper bracket 11 is fixedly coupled to the low pressure side 202 of the fixed scroll 2. Specifically, the bolt 29 is provided through the upper bracket 11 and provided with a bolt through hole and a threaded hole 2015 provided in the fixed scroll 2 to connect and fix the upper bracket 11 to the low pressure side 202 of the fixed scroll 2.

The lower bracket 13 is fixedly coupled to the upper bracket 11 via the motor stator 12. Specifically, in the present embodiment, the upper bracket 11 includes a first side that is fixedly coupled to the fixed scroll 2 and a second side that is opposite to the first side. A plurality of upper bracket bosses 1105 are disposed on the second side of the upper bracket 11. Each of the upper bracket bosses 1105 is provided with a threaded hole 1106. Optionally, the upper bracket 11 includes four such bolt through holes 1106, and the center lines of the four bolt through holes 1106 form a square shape, and the present invention is not limited thereto. The motor stator 12 is provided with a plurality of first bolt through holes corresponding to the screw holes 1106. The lower bracket 13 is provided with a plurality of second bolt through holes corresponding to the threaded holes 1106. The bolt 35 passes through the second bolt through hole, the first bolt through hole, and the screw hole 1106 to connect and fix the upper bracket 11, the motor stator 12, and the lower bracket 13. Preferably, the upper bracket 11, the motor stator 12, and the lower bracket 13 are suspended from the low pressure side of the fixed scroll 2 and have no contact with the casing 3.

The upper bracket 11, the motor stator 12, and the lower bracket 13 are mounted together on the fixed scroll 2, and the upper bracket 11, the motor stator 12, and the lower bracket 13 are not in contact with the casing 3, thereby avoiding the motor and the transmission when the compressor is running. The vibration and noise generated by the mechanism are transmitted directly through the casing 3, thereby improving the vibration and noise performance of the whole machine. Since the interference fit of the motor stator 12 and the housing 3 is eliminated, the component accuracy requirements for the housing 3 and the motor stator 12 can be relaxed, so that the production cost can be reduced. In addition, the mounting structure enables visual inspection of all internal parts during compressor assembly, reducing the chance of misoperation during assembly operations. Therefore, the mounting structure can optimize the processing and assembly of parts of the compressor, which is beneficial to reduce production costs.

Further, in conjunction with the above figures and with continued reference to Figures 17 and 18. Figure 17 is a cross-sectional view showing the upper bracket-motor mechanism-lower bracket assembly in accordance with another embodiment of the present invention. Figure 18 is a partial view T of Figure 17. The compressor may also include a guide post 36. The bolt 35 passes through the guide post 36 such that the guide post 36 is located between the bolt 35 and the inner wall of the first bolt through hole of the motor stator 12. The guide post 36 is assembled with the first bolt through hole. One end of the guide post 36 abuts against the upper bracket 11, and the other end of the guide post 36 abuts against the lower bracket 11. Therefore, it is possible to solve the problem of poor coaxiality of the upper and lower bracket bearing holes caused by poor parallelism of the end faces of the motor stator 12 or poor flatness of the end surface of the motor stator 12, thereby improving the assembly accuracy of the upper and lower bearings. In turn, the efficiency of the compressor is increased. Preferably, the axial length of the guide post 36 is greater than the axial length of the first bolt through hole. Specifically, the two ends of the guide post 36 are flat against the upper and lower brackets, and a certain distance is left between the motor stator 12 and the upper and lower brackets.

Next, a compressor according to still another embodiment of the present invention will be described with reference to Figs. 19 to 22 .

Similar to the aforementioned compressor, in the present embodiment, the vertical compressor includes a housing 3, a compression mechanism, and a motor mechanism. The housing 3 has a first opening. The compression mechanism includes a fixed scroll 2 and an orbiting scroll 3. The low pressure side 202 of the fixed scroll 2 is opposed to the first opening of the housing 3 to form an accommodation space. The motor mechanism includes a motor rotor and a motor stator 12 located in the accommodating space. The motor stator 12 is fixedly connected to the fixed scroll 2 via the upper bracket 11.

In the present embodiment, the motor stator 12 is coupled to the terminal 21 via the motor lead-out line 1201 and to the electronic control unit within the controller cavity 302 via the stationary-wire connection via 2106 and the housing wiring via 3010. The terminal 21 is located between the inner wall of the casing 3 and the outer wall of the motor stator 12, and away from the oil pool 31 (that is, at the top of the accommodating space formed by the casing 3 and the fixed scroll 2). Specifically, the terminal 21 includes a cylinder 2101 and an end plate 2102. The end plate 2102 is provided with a through hole through which the column 2101 passes. The motor lead wire 1201 includes a terminal 1202 electrically connected to the post 2101 and an insulating shroud 1203 wrapped around the outside of the terminal 1202. An outer portion of the cylinder 2101 between the insulating shroud 1203 and the end plate 2102 surrounds the insulative jacket 2104. The inner diameter of the insulating sheath 2104 is smaller than the diameter of the cylinder 2101. Optionally, a terminal 21 is disposed on the fixed scroll 2. Specifically, the fixed scroll 2 is provided with a through hole through which the column 2101 of the terminal 21 passes, and a through hole provided for the passage of the cylinder 2101 of the stud 21 around the fixed scroll 2 toward the opening of the motor mechanism Groove. The surface of the end plate 2102 facing away from the motor mechanism is in contact with the bottom wall of the recess. Optionally, a wiring cover 2105 is further included, and the wiring cover 2105 covers the end surface of the recess provided on the back surface of the fixed scroll 2 to protect the terminal 21 and the wires connected to the controller.

In this embodiment, since the motor stator 12 is fixedly connected to the fixed scroll 2, and the terminal 21 is also fixedly connected to the fixed scroll 2, the positional relationship between the motor stator 12 and the terminal 21 is fixed, and the static position is static. The scroll 2 and the housing 3 have not been assembled, and there is sufficient operation space for assembling the motor lead 1201 and the terminal 21. The length of the lead wire 1201 is used to ensure that the length of the lead wire 1201 is just enough to mount the terminal 1202 on the cylinder 2101 of the terminal 21, and the length of the lead wire 1201 is hardly redundant. When the terminal 1202 is mounted on the terminal 21, the insulating sheath 2104 is first sleeved on the outside of the cylinder 2101. The inner diameter of the insulating sheath 2104 is smaller than the outer diameter of the cylinder 2101, so that the inner hole of the insulating sheath 2104 and the cylinder 2101 The outer surface can fit snugly. The terminal 1201 is then mounted on the cylinder 2101 and the insulating shroud 1203 is pressed to elastically deform the insulating sheath 2104, ensuring a tight relationship between the insulating shroud 1203 and the insulating sheath 2104 and between the insulating sheath 2104 and the end plate 2102. fit. The assembly of the motor lead wire 1201 and the terminal 21 is thus completed. Thereafter, the fixed scroll 2 and the casing 3 are fastened by bolts to form a closed cavity.

The fixed scroll 2 is a part of the outer casing of the compressor, and the terminal 21 is mounted inside the fixed scroll 2. The motor stator 12 is indirectly mounted on the fixed scroll 2 via the upper bracket 11. The advantage of this mounting method is that the positional relationship between the motor lead wire 1201 and the terminal 21 is determined before the fixed scroll 2 and the housing 3 are mounted to form a closed cavity, and is mounted on the fixed scroll 2 and the housing 3. The positional relationship between the motor lead wire 1201 and the terminal 21 after the formation of the closed cavity is no longer changed. Before the fixed scroll 2 and the casing 3 are installed to form a closed cavity, the length of the motor lead 1201 can be accurately calculated according to the position of the motor lead 1201 and the mounting point of the terminal 21, and the motor lead 1201 and the terminal 21 are ensured. After the assembly is completed, the length of the lead wire 1201 is not redundant, and the position of the lead wire 1201 can be better fixed, and the shaking of the motor lead wire 1201 caused by the vibration of the compressor is substantially eliminated. The possibility that the motor lead wire 1201 is in contact with the peripheral component or the compressor casing is almost zero, which greatly improves the insulation and reliability of the compressor. Moreover, only the necessary electrical safety clearance needs to be reserved when designing the compressor housing 3 and the motor lead-out line 1201, which is advantageous for miniaturization of the compressor.

Since the mounting position of the terminal 21 and the motor lead wire 1201 is away from the oil pool, it is located at the top of the inner side of the compressor, and if there is a liquid refrigerant containing lubricating oil or trace moisture and impurities in the compressor, the liquid refrigerant first flows from the compressor. The bottom of the inner side begins to accumulate, and only when the liquid refrigerant almost fills the inner cavity of the compressor, it is immersed in the connection portion of the terminal 21 and the motor lead-out line 1201. Therefore, when the terminal 21 and the motor lead wire 1201 are mounted on the inner side of the compressor, the connection portion of the terminal 21 and the motor lead wire 1201 is less likely to be immersed in the liquid refrigerant, and the insulation of the compressor is installed. better.

At the same time, since the assembly process between the motor lead wire 1201 and the terminal 21 is completed in an open environment of the compressor casing, there is sufficient operation space, and the entire assembly operation is visualized, which can greatly improve the assembly and inspection operations. Sex, which can reduce the chance of misoperation in the operation and improve production efficiency.

Further, since the terminal 21 is mounted on the low pressure side of the fixed scroll 2, and the inside pressure of the compressor is greater than the external pressure, the pressure difference between the inner and outer sides of the compressor acts on the terminal end plate 2102 and forces the end plate 2102 against the static vortex. The inner wall of the groove of the disk 2. The seal 2103 of the terminal 21 does not require too much pressure on the terminal end plate 2102 to achieve a better seal between the terminal 21 and the low pressure side end face of the fixed scroll 2. Therefore, compared with the mounting manner in which the terminal 21 is mounted from the outside of the compressor, when the terminal 21 is mounted on the low-voltage side end surface of the fixed scroll 2, the force applied to the terminal 21 and the sealing member 2103 is better, and the terminal 21 is attached. Moreover, the strength requirement of the sealing member 2103 is not very high, which is advantageous for weight reduction and cost reduction of related parts.

In addition, an insulation protection device is added at a connection portion between the motor lead wire 1201 and the terminal 21, one of which is to increase the insulation shield 1203 outside the lead wire terminal 1202, and the other is to connect the wire between the insulation shield 1203 and the end plate 2102. An insulating sheath 2104 is added to the outside of the column cylinder 2101. The two insulation guards can further reduce the possibility that the conductive portion of the motor lead wire 1201 and the terminal 21 is exposed to an environment containing a refrigerant, a lubricating oil, and possibly a trace amount of moisture and impurities, thereby improving the insulation performance of the compressor.

The oil circuit design of the present invention for providing a compressor will now be described with reference to Figs. 23 through 24.

The structure of the vertical compressor of this embodiment is similar to that of Figs. 1 to 16, the vertical compressor includes a housing 3, a compression mechanism, and a motor mechanism. The housing 3 has a first opening. The compression mechanism includes a fixed scroll 2 and an orbiting scroll 3. The low pressure side 202 of the fixed scroll 2 is opposed to the first opening of the housing 3 to form an accommodation space. The motor mechanism includes a motor rotor and a motor stator 12 located in the accommodating space. The motor stator 12 is fixedly connected to the fixed scroll 2 via the upper bracket 11.

In the present embodiment, the vertical compressor further includes an eccentric crankshaft 19, a pump cylinder 25, an oil pump 26, a penetrating oil pump shaft 27, an upper bearing 17, and a lower bearing 18. The motor mechanism, the oil pump 26 and the lower bearing 18 are all disposed on the low pressure side of the vertical compressor.

The eccentric crankshaft 19 is coupled to the motor rotor 20 of the motor mechanism to transmit a rotational force, and the eccentric crankshaft 19 includes a long shaft portion 1909. The first end of the long shaft portion 1909 is provided with an eccentric pin hole 1901, and the second end is provided with an eccentric pin 1908. A shoulder portion 1907 is also disposed between the long shaft portion 1909 and the eccentric pin 1908. The eccentric crankshaft 19 has an oil passage 1902 inside. The oil passage hole 1902 penetrates the eccentric crankshaft 19 along the longitudinal direction of the eccentric crankshaft 19. The oil passage hole 1902 includes a first oil pipe 1906 that penetrates the long shaft portion 1909 and a second oil pipe 1903 that penetrates the eccentric pin 1908. The first oil pipe and the second oil pipe are in communication in the shoulder portion 1907.

The pump cylinder 25 is disposed on the lower bracket 13. The pump cylinder 25 is formed with a pump oil chamber 2502. The pump cylinder 25 is also provided with an oil suction hole 2501. An oil pool 31 is disposed at the bottom of the casing 3, and the oil suction hole 2501 communicates with the pump cylinder 25 and the oil pool 31.

The oil pump 26 is disposed in the pump oil chamber 2502. The oil pump 26 includes an oil pump body 2609. The oil pump body 2609 has an oil pump through hole 2602 that is axially penetrated. The first side of the oil pump body 2609 is provided with a radially extending oil drain hole 2601. The oil drain hole 2601 communicates with the oil pump through hole 2602. The oil pump body 2609 has an oil pump blade 2608 in the circumferential direction. The oil pump blade 2608 presses the lubricating oil into the oil drain hole 2601 as the oil pump body 2609 rotates. The oil pump body 2609 is also provided with an axial oil pump groove 2603. The oil pump groove 2603 is disposed on the inner wall of the oil pump through hole 2602 and opens toward the oil pump shaft 27. The oil pump groove 2603 supplies lubricating oil to pass between the inner wall of the oil pump through hole 2602 and the outer wall of the oil pump shaft 27.

Both ends of the oil pump shaft 27 are respectively sleeved in the eccentric pin hole 1901 of the oil pump 26 and the long shaft portion 1909, and the oil pump 26 and the oil passage hole 1902 of the eccentric crankshaft 19 are connected.

The upper bearing 17 is sleeved to the shoulder portion 1907 of the eccentric crankshaft 19. The lower bearing 18 is disposed on the lower bracket 13. The lower bearing 18 is sleeved to the first end of the long shaft portion 1909 of the eccentric crankshaft 19. The upper bracket 11 is sleeved on the upper bearing 17.

Optionally, the lower bracket 13 fixedly coupled to the motor stator 12 is provided with a through hole 1303. The pump cylinder 25, the oil pump 26, the oil pump shaft 27, and the lower bearing 18 are all disposed in the through hole 1303. A ring groove 1302 is also formed in the through hole 1303 of the lower bracket 13. A retaining ring 24 is disposed in the ring groove 1302. One end of the pump cylinder 25 abuts against the retaining ring 24. The other end face of the pump cylinder 25 abuts against an oil pump end plate 28. The oil pump end plate 28 is disposed on the lower bracket 13. The oil pump end plate 28 is provided with an oil inlet hole 2801 communicating with the oil suction hole 2501, and the oil inlet hole 2801 is provided with a sieve mesh.

Optionally, the eccentric pin 1908 is also provided with a radial oil hole 1904. The radial oil hole 1904 penetrates from the inner wall of the second oil pipe 1903 of the eccentric pin 1908 to the outer wall of the eccentric pin 1908. The eccentric pin 1908 is also provided with a first oil groove 19051. The first oil groove 19051 communicates with the radial oil hole 1904 and is located between the outer wall of the eccentric pin 1908 and the inner wall of the upper bearing 17.

Alternatively, a bearing hole 1502 is provided on a side of the movable scroll 15 facing away from the fixed scroll 2. A moving plate bearing 16 is disposed within the bearing hole 1502. The eccentric pin 1908 is inserted into the bearing bore 1502. The rotor bearing 16 is located between the eccentric pin 1908 and the inner wall of the bearing bore 1502. The eccentric pin 1908 is also provided with a second oil groove 19052. The second oil groove 19052 is in communication with the first oil groove 19051 and is located between the outer wall of the eccentric pin 1908 and the inner wall of the movable plate bearing 16. Optionally, the eccentric crankshaft 19 forms an oil passage chamber 19053 between an end of the movable scroll 15 and a bottom wall of the bearing hole 1502, and the oil passage chamber 19053 communicates with the oil passage hole 1902 and the second oil groove 19052.

Optionally, the vertical compressor further includes an anti-rotation mechanism 200. The anti-rotation mechanism 200 is disposed between the upper bracket 11 and the movable scroll 15. The anti-rotation mechanism 200 has an annular structure and is provided with a key 2001 facing the upper bracket 11 and a key 2002 facing the movable scroll 15. The number of keys 2001 can be two and the two keys 2001 are opposite. The number of keys 2002 can also be two, and the two keys 2002 are opposite. Corresponding to the key 2002, the side of the movable scroll 15 facing away from the fixed scroll 2 is provided with a key groove 1503 in which the key 2002 of the anti-rotation mechanism 200 slides.

Further, a side of the upper bracket 11 facing the fixed scroll 2 is provided with a cavity 1101, a key groove 1102 and a counterbore 1103 which communicate with each other. The counterbore 1103 and the shoulder portion 1907 of the eccentric crankshaft 19 form a first oil pool 1103A that can accommodate lubricating oil. The cavity 1101 surrounds the counterbore 1103. An annular boss is located between the cavity 1101 and the counterbore 1103. The cavity 1101 forms a second oil pool 1101A that can hold lubricating oil. The key groove 1102 is provided for the key 2001 of the anti-rotation mechanism 200 to slide therein. The key groove 1102 penetrates the annular boss through the cavity 1101 and the counterbore 1103 so that lubricating oil can flow from the first oil pool 1103A to the second oil pool 1101A to be between the key 2001 and the key groove 1102, the key 2002 and the key groove 1503. Lubrication.

Optionally, the upper bracket 11 is further provided with a radial oil passage hole 1107. The vertical compressor also includes a return line 32. One end of the oil return pipe 32 is installed in the oil passage hole 1107 of the upper bracket 11, and the other end of the oil return pipe 32 extends to the outside of the coil of the motor stator 12. The oil return pipe 32 is away from the flow passage of the refrigerant from the intake port 2010 into the compression chamber formed by the fixed scroll wrap 201 and the movable scroll wrap 1501. Specifically, the position of the oil return slit between the oil return pipe 32, the motor stator 12, and the casing 3 is away from the flow path through which the refrigerant flows from the compressor suction port 2010 into the internal compression chamber.

Optionally, the vertical compressor further includes a wear pad 14 . The wear pad 14 is located between the upper bracket 11 and the movable scroll 15. The wear pad 14 includes a through hole 1401 partially overlapping the key groove 1503 of the movable scroll 15 to pass through the key 2002 of the anti-rotation mechanism 200. The maximum distance from the center of the wear pad 14 to the edge of the through hole 1401 is L1, the radius of the movable scroll 15 toward the end face of the motor mechanism is R1, and the eccentric distance of the movable scroll 15 with respect to the fixed scroll 2 is r1. , then R1>L1+r1.

Optionally, the vertical compressor further includes an upper oil hood 22 and a lower oil hood 23 . In the present embodiment, the upper oil hood 22 is mounted on the upper bracket 11. The lower oil hood 23 is mounted on the lower bracket 13, and the upper oil damper 22, the lower oil hood 23, the upper bracket 11, the motor stator 12, and the lower bracket 13 form a closed space 34 (the space 34 is located inside the stator coil, in some variations In an example, the space 34 may also be defined by the outside of the stator coil, and the motor rotor 20 is housed within the space 34. The upper oil hood 22 and the lower oil hood 22 may be annular members having a polygonal cross section. In some variations, the upper and

lower oil hoods

22, 23 are mounted on the motor stator 12, such as on the inner or outer stator end faces of the stator coils. In other variations, the upper oil hood 22 or the lower oil hood 23 may also be mounted to the housing 3. In still other variations, the lower oil hood 23 and the lower bracket 13 are combined into one same piece, and cooperate with the upper oil hood 22 and the motor stator 12 to form a relatively closed space 34 (see FIGS. 44 and 45). . In other words, in this variation, the lower end of the lower bracket 13 is closed. The upper oil hood 22 and the lower oil hood 23 can be mounted and connected to the respective components by bolting/bonding/interference pressing.

Thereby, the upper oil hood 22, the lower oil hood 23 and the upper bracket 11, the motor stator 12, and the lower bracket 13 cooperate to form a relatively closed space 34, and the motor rotor 20 is wrapped in the space 34. The relatively closed space 34 can substantially isolate the lubricating oil outside it from the motor rotor 20 and the eccentric crankshaft 19 therein.

The vertical compressor is operated in such a manner that the motor stator 12 after the energization drives the eccentric crankshaft 19 to rotate at a high speed, and the eccentric crankshaft 19 drives the orbiting scroll 15 to eccentrically rotate with respect to the fixed scroll 2. The refrigerant enters the low pressure chamber 309 through the suction port 2010 and then flows into the low pressure side 202 of the fixed scroll, and then flows into the compression chamber formed by the fixed scroll wrap 201 and the orbiting scroll wrap 1501 to be compressed, and the refrigerant after compression The vent hole 209 flows into the high pressure chamber 2014, and then the compressor is discharged through the exhaust port 2012 that communicates with the high pressure chamber 2014.

The eccentric crankshaft 19 drives the oil pump 26 to rotate relative to the pump cylinder 25 via the oil pump shaft 27, so that the lubricating oil of the oil pool 31 stored at the bottom of the low pressure chamber 309 of the compressor is sucked into the pump through the oil inlet hole 2801 and the oil suction hole 2501 of the screen. The oil chamber 2502 is discharged through the oil drain hole 2601.

The lubricating oil discharged from the oil drain hole 2601 is divided into two parts: a small portion of the lubricating oil flows into the lower bearing hole through the groove 2603 of the oil pump, and between the oil pump shaft 27 and the oil pump 26, between the eccentric crankshaft 19 and the lower bearing 18 can be realized. The other lubricating oil passes through the through hole 2701 of the oil pump shaft and the axial oil passage hole 1902 of the eccentric crankshaft 19 and flows into the second oil pipe 1903.

The lubricating oil flowing into the second oil pipe 1903 is further divided into two parts: a part of the lubricating oil flows into the first oil groove 19051 of the outer surface of the eccentric crankshaft through the radial oil hole 1904, and lubricates the friction pair between the eccentric crankshaft 19 and the upper bearing 17; Another portion of the lubricating oil flows into the second oil groove 19052 of the outer surface of the eccentric crankshaft through the oil passage chamber 19053 to lubricate the friction pair between the eccentric crankshaft 19 and the movable plate bearing 16.

Since the rotation speed of the compressor is high and the oil pump 26 is driven to operate synchronously, more lubricating oil is quickly pumped to the

oil grooves

19051 and 19052, and flows into the counterbore 1103 of the upper bracket 11 through the

oil grooves

19051 and 19052, so that almost instantaneously Lubricating oil is accumulated in the counterbore 1103 to form an intermediate oil pool 1103A. When the oil level is sufficiently high, the lubricating oil flows into the cavity 1101 through the key groove 1102 of the upper bracket 11 and forms the intermediate oil pool 1101B in the cavity 1101, so that the lubricating oil can be fully immersed and the key 2001 and the bracket of the anti-rotation mechanism The friction pair between the key groove 1102 of the 11 and the key groove 1503 of the movable scroll 15 is lubricated.

And the lubricating oil can be immersed through the through hole 1401 of the wear pad 14 to the side of the movable scroll 15 facing away from the fixed scroll 2, and as the movable scroll 15 is operated at a high speed, the movable scroll 15 will be immersed in it. Lubricating oil on the back surface is applied to the support surface between the wear pad 14 and the movable scroll 15, and lubrication between the wear pad 14 and the movable scroll 15 is achieved. Since the mating relationship between the movable scroll 15 and the wear pad 14 satisfies R1>L1+r1, the through hole 1401 of the wear pad 14 is always covered by the end face of the passive scroll 15 facing away from the fixed scroll 2, so The through hole 1401 of the wear pad 14 is immersed in the lubricating oil on the side of the movable scroll 15 facing away from the fixed scroll 2, and the lubricating oil is always covered by the end face of the passive scroll 15 facing away from the fixed scroll 2 without flowing into the static vortex The wraps 201 of the disk 2 and the wraps 1501 of the movable scroll 15 cooperate with a compression chamber formed.

And the upper oil hood 22, the lower oil hood 23, the upper bracket 11, the motor stator 12, and the lower bracket 13 cooperate to form a relatively closed space 34 and enclose the motor rotor 20 in the space 34, thereby substantially isolating the lubricating oil in the space. Within 34, the motor rotor 20 or the crankshaft 19, which can substantially avoid high-speed rotation, agitates the lubricating oil and flies the lubricating oil into the flow space of the refrigerant.

In addition, the lubricating oil accumulated in the cavity 1101 flows through the oil return pipe 32 to the end surface of the motor stator 12, and returns to the oil pool 31 at the bottom of the low pressure chamber 309 of the compressor through the gap between the motor stator 12 and the casing 3, This achieves the recycling of the lubricating oil inside the compressor.

The flow space passing through the compression chamber formed by the refrigerant entering the compressor suction port 2010 until the wraps 201 flowing into the fixed scroll and the wraps 1501 of the movable scroll are distributed in the low pressure chamber 309 of the compressor The upper portion, and the oil pool 31 of the lubricating oil is located at the bottom of the low pressure chamber 309, and the lubricating oil is returned from the oil inlet hole 2801 of the screen to the oil pool 31 through the gap between the motor stator 12 and the casing 3. The entire process of oil circulation inside the compressor can achieve the basic isolation of the lubricating oil and the refrigerant flow, thus greatly reducing the probability that the lubricating oil will be discharged to the compressor as the refrigerant flows.

In summary, the lubrication method of the scroll compressor can achieve good lubrication of almost all friction pairs of the internal transmission mechanism of the compressor, and can basically prevent the lubricating oil from being discharged out of the compressor as the refrigerant flows, which can greatly reduce the compressor. The amount of oil discharged.

The exemplary embodiments of the present invention have been particularly shown and described above. It is to be understood that the invention is not limited to the disclosed embodiments, and the invention is intended to cover various modifications and equivalents.

Claims

A vertical compressor, comprising:

a housing (3) having a first opening;

Compression mechanism, including:

The fixed scroll (2) includes a low pressure side (202) provided with a wrap (201) and a high pressure side (206) facing away from the wrap (201), the low pressure of the fixed scroll (2) The side (202) is opposite to the first opening of the casing (3) to form an accommodating space;

a movable scroll (15), the movable scroll (15) is located in the accommodating space, and the movable scroll (15) is provided with one side of the wrap (1501) and the fixed scroll (2) The wraps (201) are opposed to each other, and the wraps (201) of the fixed scroll (2) and the wraps (1501) of the orbiting scroll (15) form a compression chamber;

a motor mechanism comprising a motor rotor (20) and a motor stator (12), the motor mechanism being located in the accommodating space and driving the movable scroll (15) to rotate relative to the fixed scroll (2), To compress the refrigerant in the compression chamber.
The vertical compressor according to claim 1, wherein the stationary scroll (2) is an aluminum alloy forged part or an aluminum alloy extruded casting, and the vertical compressor further comprises:

An upper cover (1), a high pressure chamber (2014) is formed between the upper cover (1) and the high pressure side (206) of the fixed scroll (2);

The low pressure side (202) of the fixed scroll (2) is further formed with an air suction chamber (203), wherein

The fixed scroll (2) is further provided with an exhaust port (2012) communicating with the high pressure chamber (2014) and an intake port (2010) communicating with the suction chamber (203).
The vertical compressor according to claim 2, characterized in that the housing (3) and the low-pressure side (202) of the fixed scroll (2) form an accommodation space which is a rectangular parallelepiped.
A vertical compressor according to claim 3, wherein said housing (3) includes a retaining wall (308) that divides said housing space into a low pressure chamber (309) And the controller cavity (302),

The low pressure chamber (309) houses the motor mechanism;

The controller cavity (302) is provided with a second opening.
The vertical compressor of claim 4, further comprising:

a controller chamber cover (4), the controller chamber cover (4) sealing the second opening;

An electronic control component is disposed within the controller cavity (302) between the controller chamber cover (4) and the retaining wall.
The vertical compressor according to claim 5, wherein said retaining wall is provided with a cavity (305) opening toward said controller chamber (302),

The electronic control component includes:

a first electronic control component is received in the cavity (305);

The second electronic control unit is disposed in a portion of the space other than the cavity (305) with the retaining wall (308).
A vertical compressor according to claim 6, wherein said first electronic control unit comprises one or more of the following components: a capacitor, an inductor, and a relay; and said second electronic control unit includes a power component The power component is attached to the retaining wall (308).
The vertical compressor of claim 1 further comprising:

The upper bracket (11) is fixedly connected to the low pressure side (202) of the fixed scroll (2);

The lower bracket (13) is fixedly connected to the upper bracket by the motor stator (12).
A vertical compressor according to claim 8, wherein

The upper bracket (11) includes a first side fixedly coupled to the fixed scroll (2) and a second side opposite the first side, and the second side of the upper bracket (11) is disposed There are a plurality of upper bracket bosses (1105), and each of the upper bracket bosses (1105) is provided with a threaded hole (1106);

The motor stator (12) is provided with a plurality of first bolt through holes corresponding to the threaded holes (1106);

The lower bracket (13) is provided with a plurality of second bolt through holes corresponding to the threaded holes (1106);

a bolt (35) passing through the second bolt through hole, the first bolt through hole, and the threaded hole (1106) to place the upper bracket (11), the motor stator (12), and the lower portion The bracket (13) is fixedly connected.
The vertical compressor according to claim 9, further comprising:

a guide post (36), the bolt (35) passing through the guide post (36), the guide post (36) being located at the bolt (35) and the first bolt through hole of the motor stator (12) Between the inner walls,

Wherein, one end of the guiding post (36) abuts the upper bracket (11), and the other end of the guiding post (36) abuts the lower bracket (11).
A vertical compressor according to claim 10, wherein said guide post (36) has an axial length greater than an axial length of said first bolt through hole.
A vertical compressor according to claim 9, wherein said upper bracket (11) includes four said threaded holes (1106), and a center line of four of said threaded holes (1106) forms a square shape .
A vertical compressor according to claim 8, wherein a bolt (29) passes through said upper bracket (11) and a threaded hole (2015) provided in said fixed scroll (2) to cause said The upper bracket (11) is fixedly coupled to the low pressure side (202) of the fixed scroll (2).
A vertical compressor according to claim 8, wherein said upper bracket (11) and said lower bracket (13) are provided with through holes for the bearing mechanism to pass through.
A vertical compressor according to claim 8, wherein said motor stator (12) is connected to a terminal (21) via a motor lead wire (1201), said terminal (21) being located in said housing (3) between the inner wall and the outer wall of the motor stator (12) and away from the bottom wall of the casing (3).
The vertical compressor according to claim 15, wherein said terminal (21) comprises a cylinder (2101) and an end plate (2102), and said end plate (2102) is provided with said column a through hole through which the body (2101) passes;

The motor lead wire (1201) includes a terminal (1202) electrically connected to the post (2101) and an insulating shroud (1203) wrapped around the terminal (1202);

Wherein, the outer portion of the cylinder (2101) between the insulating shroud and the end plate (2102) is surrounded by an insulating sheath (2104).
The vertical compressor according to claim 16, wherein the inner diameter of the insulating sheath (2104) is smaller than the outer diameter of the cylinder (2101).
A vertical compressor according to claim 16, wherein said terminal (21) is disposed on said fixed scroll (2).
A vertical compressor according to claim 18, wherein

The fixed scroll (2) is provided with a through hole through which the column (2101) of the terminal (21) passes, and a column surrounding the fixed scroll (2) for the terminal (21) ( 2101) a through hole provided through the through hole facing the opening of the motor mechanism;

The surface of the end plate (2102) facing away from the motor mechanism is in contact with the bottom wall of the recess.
The vertical compressor of claim 8 further comprising:

An eccentric crankshaft (19) coupled to the motor rotor (20) of the motor mechanism for transmitting a rotational force, the eccentric crankshaft (19) including a long shaft portion (1909), the long shaft portion (1909) An eccentric pin hole (1901) is disposed at one end, an eccentric pin (1908) is disposed at the second end, and a shoulder portion (1907) is further disposed between the long shaft portion (1909) and the eccentric pin (1908). The eccentric crankshaft (19) has an oil passage hole (1902) inside, the oil passage hole (1902) penetrating the eccentric crankshaft (19) along the length direction of the eccentric crankshaft (19);

a pump cylinder (25) is disposed on the lower bracket (13), the pump cylinder (25) is formed with a pump oil chamber (2502), and the pump cylinder (25) is further provided with an oil suction hole (2501), The bottom of the casing (3) is provided with an oil pool (31), the oil suction hole (2501) is connected to the pump cylinder (25) and the oil pool (31);

An oil pump (26) is disposed in the pump oil chamber (2502);

a penetrating oil pump shaft (27) is respectively sleeved at the oil pump (26) and the eccentric pin hole (1901) of the long shaft portion (1909), and the oil pump (26) and the eccentric crankshaft are connected (19) oil passage hole (1902);

An upper bearing (17) that sleeves a shoulder portion (1907) of the eccentric crankshaft (19);

a lower bearing (18) disposed on the lower bracket (13), the lower bearing (18) sleeved a first end of the long shaft portion (1909) of the eccentric crankshaft (19);

Wherein, the motor mechanism, the oil pump (26) and the lower bearing (18) are both disposed on the low pressure side of the vertical compressor.
The vertical compressor according to claim 20, wherein said oil pump (26) comprises an oil pump body (2609), said oil pump body (2609) having an axially penetrating oil pump through hole (2602), The first side of the oil pump body (2609) is provided with a radially extending oil drain hole (2601), the oil drain hole (2601) is connected to the oil pump through hole (2602), and the oil pump body (2609) The oil pumping vane (2608) is circumferentially directed, and the oil pumping vane (2608) pressurizes the lubricating oil into the oil draining hole (2601) as the oil pump body (2609) rotates.
The vertical compressor according to claim 21, wherein said oil pump body (2609) is further provided with an axial oil pump groove (2603), and said oil pump groove (2603) is disposed at said oil pump passage An inner wall of the hole (2602) opening toward the oil pump shaft (27), the oil pump groove (2603) for lubricating oil to pass through the inner wall of the oil pump through hole (2602) and the oil pump shaft (27) Lubricate between the outer walls.
The vertical compressor according to claim 22, wherein the lower bracket (13) is provided with a through hole (1303), the pump cylinder (25), the oil pump (26), the oil pump shaft (27), and The lower bearing (18) is disposed in the through hole (1303), and the oil pump groove (2603) supplies the lubricating oil to flow between the lower bearing (18) and the eccentric crankshaft (19).
A vertical compressor according to claim 23, wherein

The through hole (1303) of the lower bracket (13) is further provided with a ring groove (1302), and the ring groove (1302) is provided with a retaining ring (24);

An end surface of the pump cylinder (25) is in close contact with the retaining ring (24), and the other end surface of the pump cylinder (25) is in close contact with an oil pump end plate (28), and the oil pump end plate (28) is disposed. On the lower bracket (13), the oil pump end plate (28) is provided with an oil inlet hole (2801) communicating with the oil suction hole (2501), and the oil inlet hole (2801) is provided with a sieve.
The vertical compressor according to claim 20, wherein said oil passage hole (1902) includes a first oil pipe (1906) penetrating the long shaft portion (1909) and penetrating the eccentric pin (1908) a second oil pipe (1903), the first oil pipe and the second oil pipe are in communication in the shoulder portion (1907).
A vertical compressor according to claim 25, wherein said shoulder portion (1907) is further provided with a radial oil hole (1904) from said eccentric pin (1904) The inner wall of the second oil pipe (1903) of 1908) penetrates to the outer wall of the eccentric pin (1908).
The vertical compressor according to claim 26, wherein said eccentric pin (1908) is further provided with a first oil groove (19051), said first oil groove (19051) and said radial oil hole (1904) And communicating between the outer wall of the eccentric pin (1908) and the inner wall of the upper bearing (17).
A vertical compressor according to claim 27, wherein said upper bracket (11) is sleeved on said upper bearing (17).
A vertical compressor according to claim 27, wherein

A bearing hole (1502) is disposed on a side of the movable scroll (15) facing away from the fixed scroll (2), and a movable disk bearing (16) is disposed in the bearing hole (1502), the eccentric pin (1908) inserting the bearing bore (1502), the moving disc bearing (16) being located between the eccentric pin (1908) and the inner wall of the bearing bore (1502),

The eccentric pin (1908) is further provided with a second oil groove (19052), the second oil groove (19052) is in communication with the first oil groove (19051), and is located at an outer wall of the eccentric pin (1908) and the Between the inner walls of the rotor bearing (16).
A vertical compressor according to claim 29, wherein said eccentric crankshaft (19) forms an oil passage between an end of said orbiting scroll (15) and a bottom wall of said bearing hole (1502) A cavity (19053), the oil passage chamber (19053) is in communication with the oil passage hole (1902) and the second oil groove (19052).
A vertical compressor according to claim 20, further comprising an anti-rotation mechanism (200) disposed between said upper bracket (11) and said movable scroll (15), said anti-rotation The mechanism (200) is provided with a key (2001) facing the upper bracket (11) and a key (2002) facing the movable scroll (15),

A side of the movable scroll (15) facing away from the fixed scroll (2) is provided with a key groove (1503) in which a key (2002) of the anti-rotation mechanism (200) slides.
A vertical compressor according to claim 31, wherein

The upper bracket (11) is disposed on one side of the fixed scroll (2) with a cavity (1101), a keyway (1102) and a counterbore (1103) communicating with each other.

The counterbore (1103) and the shoulder portion (1907) of the eccentric crankshaft (19) form a first oil pool (1103A) capable of containing lubricating oil;

The cavity (1101) surrounds the counterbore (1103), an annular boss is located between the cavity (1101) and the counterbore (1103), and the cavity (1101) forms a a second oil pool (1101A) containing lubricating oil;

The keyway (1102) is slidable therein by a key (2001) of the anti-rotation mechanism (200), and the keyway (1102) is connected through the annular boss through the cavity (1101) and the counterbore (through the annular boss) 1103), allowing lubricating oil to flow from the first oil pool (1103A) to the second oil pool (1101A) to be between the key (2001) and the keyway (1102), the key ( 2002) and lubrication between the keyway (1503).
The vertical compressor according to claim 31, wherein said upper bracket (11) is further provided with a radial oil passage hole (1107).

The vertical compressor further includes:

a return pipe (32), one end of the oil return pipe (32) is installed in an oil passage hole (1107) of the upper bracket (11), and the other end of the oil return pipe (32) extends to the inner wall of the casing (3) and Between the outside of the coil of the motor stator (12).
A vertical compressor according to claim 31, further comprising:

a wear pad (14) between the upper bracket (11) and the movable scroll (15), the wear pad (14) including a keyway with the movable scroll (15) 1503) a partially overlapping through hole (1401) for passing through a key (2002) of the anti-rotation mechanism (200), wherein

The maximum distance from the center of the wear pad (14) to the edge of the through hole (1401) is L1, and the radius of the movable scroll (15) toward the end face of the motor mechanism is R1, the movable scroll (15) When the eccentricity of the eccentric rotation with respect to the fixed scroll (2) is r1, R1 > L1 + r1.
The vertical compressor of claim 20, further comprising:

An upper oil hood (22) is mounted on the upper bracket (11);

a lower oil hood (23) mounted on the lower bracket (13),

The upper oil hood (22), the lower oil hood (23), the upper bracket (11), the motor stator (12), and the lower bracket (13) form a closed space (34), and the motor rotor (20) It is housed in the space (34).
The vertical compressor according to claim 35, wherein said upper oil hood (22) and said lower oil hood (22) are annular members having a polygonal cross section.
A vertical compressor according to claim 4, wherein said refrigerant flows into said vertical compressor from an intake port (2010) of said fixed scroll (2) and faces away from said static a scroll flows toward a bottom wall of the casing (3), and the refrigerant passes through a retaining wall (308) of the casing (3) to cool an electronic control unit in the controller chamber (302). And the refrigerant flows through the motor mechanism to cool the motor mechanism, and then flows into the compression chamber formed by the fixed scroll (2) and the movable scroll (15).