WO2023246195A1 - 电动压缩机、空调系统和车辆 - Google Patents
电动压缩机、空调系统和车辆 Download PDFInfo
- Publication number
- WO2023246195A1 WO2023246195A1 PCT/CN2023/081738 CN2023081738W WO2023246195A1 WO 2023246195 A1 WO2023246195 A1 WO 2023246195A1 CN 2023081738 W CN2023081738 W CN 2023081738W WO 2023246195 A1 WO2023246195 A1 WO 2023246195A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oil
- oil separation
- housing
- chamber
- electric compressor
- Prior art date
Links
- 238000004378 air conditioning Methods 0.000 title claims description 29
- 238000000926 separation method Methods 0.000 claims abstract description 430
- 239000003507 refrigerant Substances 0.000 claims abstract description 192
- 230000006835 compression Effects 0.000 claims abstract description 134
- 238000007906 compression Methods 0.000 claims abstract description 134
- 238000004891 communication Methods 0.000 claims abstract description 128
- 238000009434 installation Methods 0.000 claims description 110
- 230000004323 axial length Effects 0.000 claims description 13
- 239000003921 oil Substances 0.000 description 767
- 239000000306 component Substances 0.000 description 172
- 239000010687 lubricating oil Substances 0.000 description 71
- 230000004308 accommodation Effects 0.000 description 52
- 239000007788 liquid Substances 0.000 description 24
- 238000013461 design Methods 0.000 description 22
- 239000012530 fluid Substances 0.000 description 13
- 239000003638 chemical reducing agent Substances 0.000 description 12
- 239000007789 gas Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- 238000012545 processing Methods 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000010726 refrigerant oil Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 230000003584 silencer Effects 0.000 description 7
- 230000005484 gravity Effects 0.000 description 6
- 239000000446 fuel Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
Definitions
- the present application relates to the field of compressor technology, and in particular to an electric compressor, an air conditioning system and a vehicle.
- the electric compressor is the core component of vehicle refrigeration equipment. It is a positive displacement compressor with high efficiency, low noise and smooth operation. It is widely used in automobile air conditioning systems. In recent years, with the development of new energy vehicles, the demand for automobiles has increased. The requirements for noise, vibration and durability of air conditioning compressors have further increased.
- lubricating oil needs to be provided to lubricate the friction pairs in the electric compressor to reduce the noise generated when the friction pairs are working. However, part of the lubricating oil will flow out with the exhaust gas from the compressor, resulting in insufficient lubricating oil and affecting the reliability of the compressor.
- the present disclosure aims to solve one of the technical problems in the related art, at least to a certain extent.
- the first purpose of the present disclosure is to propose an electric compressor that has the function of oil and gas separation, improves the problem of insufficient lubricating oil in the electric compressor, and improves the reliability of the electric compressor.
- This application also proposes an air conditioning system with the above-mentioned electric compressor.
- This application also proposes a vehicle with the above air conditioning system.
- An electric compressor includes: a casing component; a compression component disposed in the casing component and used to compress refrigerant; and a motor component disposed in the casing.
- the body component is used to drive the compression component to perform compression work; wherein the housing component includes a first housing, at least part of the compression component is accommodated in the first housing, and the first housing A refrigerant discharge port is formed on the first shell.
- the first housing is provided with an oil separation chamber.
- the oil separation inlet of the oil separation chamber is connected to the exhaust port of the compression component.
- the oil separation outlet of the oil separation chamber is connected to the refrigerant discharge port. .
- the first housing is equipped with an outer oil separation pipe, and the inner cavity of the outer oil separation pipe forms at least part of the oil separation chamber.
- the lower end of the outer oil pipe has a reducing tube, and the lower port of the reducing tube is formed as a first oil return hole, and the aperture of the first oil return hole is smaller than The inner diameter of the oil separation chamber.
- the outer surface of the first housing has an installation port spaced apart from the refrigerant discharge port, and the outer oil pipe is adapted to be installed along its own axis through the installation port. into the first housing.
- the housing has a first hole section and a second hole section coaxially arranged, and the two axial ends of the oil separator outer tube are respectively inserted into the first hole. section and the second hole section, there is a disconnected interval between the first hole section and the second hole section, and one end of the second hole section away from the first hole section penetrates the first hole section.
- the outer surface of the housing is formed as the installation opening.
- a first communication channel is formed on the first housing, and one end of the first communication channel penetrates the outer surface of the first housing to form the refrigerant discharge chamber.
- the outlet, the other end of the first communication channel is connected to the end of the first hole section away from the second hole section.
- a second communication channel is formed on the first housing, the oil inlet is formed on the first hole section, and is connected to the first hole section through the second communication channel.
- the exhaust port is formed on the first housing, the oil inlet is formed on the first hole section, and is connected to the first hole section through the second communication channel.
- the electric compressor according to some embodiments of the present application further includes an inner oil pipe located in the outer oil pipe, and an air inlet cavity is formed between the inner wall of the outer oil pipe and the outer wall of the inner pipe.
- the first housing and/or the oil separator outer tube are provided with the oil separator inlet, the oil separator inlet extends along the tangential direction of the oil separator outer tube and is connected with the air inlet chamber, and the oil separator inner tube
- the inner cavity is formed into an air outlet cavity, and the air outlet cavity is connected with the refrigerant discharge port and the air inlet cavity respectively.
- the inner oil pipe is assembled to the first housing, or is connected to the outer oil pipe, or is integrated with the first housing.
- the first housing itself defines the oil separation chamber.
- an oil return device is provided in the lower part of the oil separation chamber, and a first oil return hole is provided on the oil return device.
- the aperture of the first oil return hole is smaller than the oil return hole.
- the inner diameter of the cavity is provided in the lower part of the oil separation chamber.
- a second oil return hole is provided on the wall of the oil separation chamber, and the second oil return hole is connected with the first oil return hole.
- the axial distance between the upper end of the oil separation chamber and the first oil return hole is L1
- the axial distance between the oil separation inlet and the first oil return hole is The distance in the direction is L2.
- the inner cavity of the oil separation tube is formed into an air outlet chamber connected with the oil separation outlet.
- the distance between the oil separation inner tube and the first oil return hole is The axial distance between them is L3, where 0.2L1 ⁇ L3 ⁇ L2.
- the flow area of the oil separation chamber is S1
- the lower part of the oil separation chamber is provided with a first oil return hole
- the flow flow area of the first oil return hole is S3
- the oil separation chamber is provided with an oil separation inner tube
- the inner cavity of the oil separation inner tube is formed as an air outlet chamber connected with the oil separation outlet.
- the flow area of the air outlet chamber is S2, and at least one of the following three conditions is satisfied.
- condition one is 0.025 ⁇ S2/S1 ⁇ 0.45
- condition two is 0.015 ⁇ S3/S1 ⁇ 0.4
- condition three is 0.15 ⁇ S3/S2 ⁇ 0.65.
- the oil separator inlet extends along the tangential direction of the oil separator chamber, and a plane passing through the axis of the oil separator chamber and perpendicular to the axis of the oil separator inlet is the projection plane, and the The area of the orthographic projection of the oil separation inlet on the projection surface is A, and the area of the orthographic projection on one side of the oil separation chamber axis is B, where B/A is greater than or equal to 80%.
- the oil separation outlet is provided on an axial side of the oil separation chamber, and the direction of the axial extension of the oil separation chamber toward the oil separation outlet is the positive extension direction, so The axial extension direction of the oil separator inlet intersects the positive extension direction of the axis of the oil separator chamber at an angle ⁇ , where 45° ⁇ 90°.
- a first communication channel is formed in the shell wall of the first housing, and the oil separation outlet communicates with the refrigerant discharge port through the first communication channel.
- the axis of the first communication channel is a straight line, and the axial length of the first communication channel is smaller than the axial length of the oil separation chamber.
- the axis coincides with or intersects the axis of the oil separation chamber.
- the axis of the first housing extends laterally, the first communication channel is located at the top of the first housing and extends vertically, and the first communication channel
- the upper end of the oil separator passes through the top of the first housing to form the refrigerant discharge port, and the oil separation chamber extends downwardly from the lower end of the first communication channel.
- An air conditioning system includes an electric compressor according to any of the above embodiments.
- a vehicle according to an embodiment of the present application includes: a vehicle body and an air conditioning system mounted on the vehicle body, where the air conditioning system is the air conditioning system according to any of the above embodiments.
- Figure 1 is a cross-sectional view of an electric compressor according to an embodiment of the present application.
- Figure 2 is a cross-sectional view of the electric compressor shown in Figure 1 from another perspective;
- Figure 3 is a perspective view of the electric compressor shown in Figure 1;
- Figure 4 is a perspective view of a housing component according to one embodiment of the present application.
- Figure 5 is a perspective view of a housing component according to another embodiment of the present application.
- Figure 6 is a cross-sectional view of a housing component according to an embodiment of the present application.
- Figure 7 is a cross-sectional view of an electric compressor according to an embodiment of the present application.
- Figure 8 is a cross-sectional view of an electric compressor according to another embodiment of the present application.
- Figure 9 is a cross-sectional view of an electric compressor according to yet another embodiment of the present application.
- Figure 10 is a cross-sectional view of an electric compressor according to yet another embodiment of the present application.
- Figure 11 is a cross-sectional view of an electric compressor according to an embodiment of the present application.
- Figure 12 is another cross-sectional view of the electric compressor shown in Figure 11;
- Figure 13 is an isometric view of the electric compressor shown in Figure 11;
- Figure 14 is a cross-sectional view of an electric compressor according to an embodiment of the present application.
- Figure 15 is another cross-sectional view of the electric compressor shown in Figure 14;
- Figure 16 is a cross-sectional view of an electric compressor according to an embodiment of the present application.
- Figure 17 is a cross-sectional view of an electric compressor according to an embodiment of the present application.
- Figure 18 is a cross-sectional view of an electric compressor according to an embodiment of the present application.
- Figure 19 is a cross-sectional view of an electric compressor according to an embodiment of the present application.
- Figure 20 is a cross-sectional view of an electric compressor according to an embodiment of the present application.
- Figure 21 is a schematic diagram of a vehicle according to an embodiment of the present application.
- Air conditioning system 1001 Air conditioning system 1001
- Compression component 101 exhaust port 11, cylinder 12, piston 13, crankshaft 14,
- Oil separation chamber wall 22 disconnection interval 23, installation area 24,
- Oil separation chamber 30 oil separation inlet 31, first communication channel 32, oil separation outlet 33, second communication channel 34,
- Oil return device 40 first oil return hole 41, second oil return hole 42,
- Oil separator assembly 5 oil separator outer tube 50, reducer tube 51, oil separator inner tube 52, air outlet chamber 521, air inlet chamber 53, filter device 54,
- Block 60 Block 60, bracket 70, pressure protection device 80, plug 81, pressure relief safety valve 82.
- an electric compressor 100 includes: a compression component 101 and a housing component 102 .
- the compression component 101 includes a cylinder 12, a piston 13 and a crankshaft 14.
- the piston 13 is located in the cylinder 12, and the crankshaft 14 is connected to the piston 13 for driving the piston 13 to rotate.
- the electric compressor 100 may also include a driving motor that drives the crankshaft 14 to rotate so that the compression component 101 performs compression work.
- the housing component 102 includes a first housing 21 , and at least part of the compression component 101 is accommodated in the first housing 21 , thereby improving the structural compactness of the electric compressor 100 .
- a refrigerant discharge port 213 is formed on the first housing 21.
- the first housing 21 is provided with an oil separation chamber 30.
- the oil separation inlet 31 of the oil separation chamber 30 is connected with the exhaust port 11 of the compression component 101.
- the shell wall of the first housing 21 A first communication channel 32 is formed therein, and the oil separation outlet 33 of the oil separation chamber 30 communicates with the refrigerant discharge port 213 through the first communication channel 32 .
- the first housing 21 is provided with the oil separation chamber 30
- the oil separation chamber 30 in Figures 1 to 3 is composed of an oil separation chamber assembled on the first housing 21.
- the outer tube 50 defines that the first housing 21 and the outer oil separator tube 50 are of separate design, which facilitates free design of the axis and cross-sectional area of the oil separator chamber 30 defined by the outer oil separator tube 50 to meet different design requirements.
- it may also include: as shown in FIG. 10 and FIG. 8 , the oil separation chamber 30 may be integrally formed on the first housing 21 , so that there is no need to assemble the oil separation chamber 30 separately, which helps simplify the production steps.
- the inner cavity of the first housing 21 is formed as an accommodation cavity 215, and at least part of the compression component 101 is located in the accommodation cavity 215.
- the compression component 101 has a compression cavity, and the compression cavity has a discharge chamber.
- the air port 11, the compressed refrigerant in the compression chamber is suitable for being discharged through the exhaust port 11, and the exhaust port 11 is connected with the oil inlet 31 of the oil separation chamber 30, and the oil outlet 33 of the oil separation chamber 30 is connected to the air outlet 11 through the first communication channel 32.
- the refrigerant discharge port 213 is connected. Therefore, the refrigerant discharged through the oil separation port 33 of the oil separation chamber 30 will only flow to the first communication channel 32 and then be discharged from the refrigerant discharge port 213. There is no refrigerant discharged through the oil separation port 33 of the oil separation chamber 30.
- the refrigerant first enters the accommodation cavity 215 and then enters the first communication passage 32 .
- the compression component 101 requires lubricating oil to work, and the lubricating oil will be mixed with the refrigerant when it is discharged.
- the setting of the oil separation chamber 30 can separate the lubricating oil mixed in the refrigerant and improve the performance of the electric compressor 100 .
- the mixed fluid of gaseous refrigerant and lubricating oil discharged from the compression chamber is discharged through the exhaust port 11, and the mixed fluid enters the oil separation chamber 30 through the oil separation inlet 31, and then the mixed fluid is separated in the oil separation chamber 30.
- the gas-liquid separation in the cavity 30 means that the gaseous refrigerant and lubricating oil in the mixed fluid are separated.
- the gaseous refrigerant enters the first communication channel 32 through the oil separation outlet 33, and flows through the first communication channel 32 and is discharged from the refrigerant discharge port 213.
- the electric compressor 100 is discharged.
- the accommodation chamber 215 can be used as an oil reservoir for storing lubricating oil.
- the lubricating oil separated by the oil separation chamber 30 can be discharged from the oil separation chamber 30 into the accommodation chamber 215 , and the oil reservoir then provides the lubricating oil to
- the compression component 101 or the oil separation chamber 30 can also directly provide the separated lubricating oil to the compression component 101 through other oil discharge paths.
- oil return of the electric compressor 100 can be realized to ensure efficient and reliable operation of the electric compressor 100 .
- the mixed fluid of refrigerant and lubricating oil discharged from the compression chamber can be separated into gas and liquid, so as to realize the exhaust and oil return of the electric compressor 100 and ensure the efficient and reliable operation of the electric compressor 100.
- the accommodation chamber 215 when used as an oil reservoir for storing lubricating oil, if the oil outlet 33 is first exhausted to the accommodation chamber 215 of the first housing 21, the exhaust pressure will be unstable due to the influence of the lubricating oil. Moreover, the exhaust gas can easily take away the lubricating oil stored in the accommodation chamber 215, which loses the significance of the gas-liquid separation in the oil separation chamber 30 in the early stage, and cannot ensure the efficient and reliable operation of the electric compressor 100.
- the first communication channel 32 is provided in the shell wall of the first shell 21 (that is, in the wall thickness space), and the first communication channel 32 connects the oil outlet 33 and the refrigerant discharge outlet 213, so that The gaseous refrigerant can be directly discharged through the oil separation outlet 33, the first communication channel 32 and the refrigerant discharge port 213, thereby avoiding the occurrence of the oil separation outlet 33 first being discharged into the accommodation cavity 215 of the first housing 21 and then being discharged through the refrigerant discharge port 213.
- the gas problem can be eliminated, thereby ensuring the exhaust stability of the electric compressor 100, and ensuring the gas-liquid separation and oil return effects of the electric compressor 100.
- an accommodating cavity 215 is formed in the first housing 21 , and at least part of the compression component 101 is located in the accommodating cavity 215 .
- the electric compressor 100 is configured as a rotary compressor, and the pump body structure of the existing rotary compressor is As a result, the compression component 101 is disposed in the center of the accommodation chamber 215 , and the oil separation chamber 30 cannot be arranged coaxially with the refrigerant discharge port 213 . Due to this limitation, the oil separation chamber 30 of the rotary compressor is prone to problems such as being unable to be processed, being too small in diameter, and being unable to be installed. It is unable to achieve optimal oil separation efficiency, and it is difficult to ensure the oil return lubrication requirements under certain conditions such as high load conditions. , air blow-by or refrigerant leakage may easily occur, resulting in a decrease in cooling capacity and compression efficiency of the electric compressor 100 , and may even fail to meet the reliability requirements of the electric compressor 100 .
- the first communication channel 32 in the shell wall of the first shell 21 (that is, in the wall thickness space), and the first communication channel 32 connects the oil outlet 33 and the refrigerant discharge outlet 213, it is possible to It is avoided that the oil separation port 33 is directly connected to the refrigerant discharge port 213, so that the size and position of the refrigerant discharge port 213 do not affect the oil separation chamber 30.
- the axis and cross-sectional area of the first communication channel 32 can be freely designed, and the refrigerant discharge port 213 Flexible design is also possible to meet different design requirements.
- the compression component 101 is placed within the shell wall of the first housing 21 (ie, within the wall thickness space).
- the first communication channel 32 is provided to connect the oil outlet 33 and the refrigerant discharge outlet 213.
- it can prevent the oil outlet 33 from exhausting into the inner cavity of the first housing 21, so that the refrigerant can directly pass from the first communication channel 32.
- the refrigerant discharge port 213 is discharged, thereby ensuring stable exhaust pressure and ensuring the overall oil and gas separation effect.
- the cavity 30 affects the refrigerant discharge port 213 and the oil separation chamber 30 so that both the refrigerant discharge port 213 and the oil separation chamber 30 can be designed flexibly, so that the designs of the refrigerant discharge port 213 and the oil separation chamber 30 can meet different design requirements.
- the electric compressor 100 oil return is sufficient, and the structure is simple and reasonable, which is conducive to ensuring efficient and reliable operation of the electric compressor.
- the first housing 21 is equipped with an outer oil separation pipe 50 , and the inner cavity of the outer oil separation pipe 50 forms at least part of the oil separation chamber 30 . That is to say, the outer oil separation pipe 50 and the first housing 21 have a separate structure, and the outer oil separation pipe 50 is inserted into the first housing 21 . Therefore, there is no need to process the oil separation chamber 30 on the first housing 21 , which reduces the structural requirements and wall thickness requirements of the first housing 21 , so that the first housing 21 can be flexibly designed.
- the lower end of the outer oil pipe 50 has a reducer tube 51 , and the lower port of the reducer tube 51 is formed into a first oil return hole 41 .
- the first oil return hole 41 The hole diameter is smaller than the inner diameter of the oil separation chamber 30.
- the axial cross-sectional shape of the wall of the tapered tube 51 may be configured as a straight line, or as shown in FIG. 10 , the axial cross-sectional shape of the wall of the tapered tube 51 may be configured as an arc, where No restrictions.
- the inner diameter of the end of the reducer tube 51 connected to the outer oil separation pipe 50 is the same as the inner diameter of the outer oil separation pipe 50 , that is, the inner diameter of the end of the reducer tube 51 connected to the outer oil separation pipe 50 is the same as the inner diameter of the oil separation chamber 30 , so that The lubricating oil can enter the reducer tube 51 along the wall of the oil separation chamber 30, and in the flow direction of the lubricating oil, the inner diameter of the reducer tube 51 gradually decreases to form a first end of the reducer tube 51 away from the oil separation outer tube 50.
- the oil return hole 41 is formed such that the diameter of the first oil return hole 41 is smaller than the inner diameter of the oil separation chamber 30 .
- the reducer tube 51 when the lubricant oil flows to the first oil return hole 41 , the inner wall of the reducer tube 51 whose inner diameter gradually decreases can guide and gather the lubricant oil, so that the lubricant oil can flow to the first oil return hole 41 . It can flow toward the first oil return hole 41 to improve the oil return reliability, and the refrigerant is not easy to pass through the first oil return hole 41 and can be efficiently discharged from the oil outlet 33 .
- the first housing 21 has a first hole section 211 and a second hole section 212 , and the upper and lower ends of the oil separator outer pipe 50 are respectively inserted into the first hole section 211 and the second hole section 212 .
- Two-hole section 212 For example, the first hole section 211 and the second hole section 212 both extend along the same axial direction toward each other, and the first hole section 211 and the second hole section 212 are spaced apart along the same axial direction.
- the second hole section 212 has a second oil return hole 42 on its wall.
- the second oil return hole 42 is lower than the lower end of the reducer tube 51 and communicates with the first oil return hole 41 . This facilitates the rapid discharge of accumulated oil and improves the reliability of oil return.
- the second oil return hole 42 is located downstream of the reducer tube 51 , and the oil separation chamber 30 is connected to the internal space of the second hole section 212 , and the second oil return hole 42 is connected to the accommodation chamber 215 , so that the separated lubricating oil in the oil separation chamber 30 can enter the accommodation chamber 215 through the first oil return hole 41 and the second oil return hole 42 in sequence, and flow back from the accommodation chamber 215 to the compression component 101 to realize the electric compressor 100 oil return.
- the outer surface of the first housing 21 has an installation port 214 spaced apart from the refrigerant discharge port 213.
- the outer oil pipe 50 is adapted to fit along its own axis (and the outer surface of the outer oil pipe 50). axis) is installed into the first housing 21 through the mounting opening 214.
- the external oil separation pipe 50 in this application does not need to be installed into the first housing 21 through the refrigerant discharge port 213. Instead, the external oil separation pipe 50 is installed into the first housing 21 through the installation port 214 other than the refrigerant discharge port 213. , so that the size of the external oil separation pipe 50 is not limited by the size of the refrigerant discharge port 213. For example, even if the refrigerant discharge port 213 is small, the size of the external oil separation pipe 50 can be larger.
- the design of the external oil separation pipe 50 and the design of the refrigerant discharge port 213 can meet different design requirements, thereby ensuring sufficient oil return from the electric compressor 100 .
- a plug 60 may be provided at the installation port 214, and the plug 60 may be used to seal the installation port 214.
- the plug 60 may also be designed to have a pressure protection function.
- the first housing 21 itself defines the oil separation chamber 30 . That is to say, the oil separation chamber 30 is integrally formed on the first housing 21 . Therefore, the step of assembling the external oil pipe 50 is omitted, reducing parts and costs.
- the oil separation chamber wall 22 is integrated with the first housing 21, and there is no need to separately provide the oil separation chamber 30, which is conducive to simplifying the production steps and improving production efficiency.
- the first housing 21 has an oil separation chamber wall 22, an oil separation chamber 30 is formed in the oil separation chamber wall 22, and an oil separation inlet 31 is formed on the oil separation chamber wall 22, and the oil separation inlet 31 is connected with the compression component.
- the exhaust port 11 of 101 is connected directly or indirectly.
- an oil return device 40 is provided in the lower part of the oil separation chamber 30.
- the oil return device 40 has a first oil return hole 41.
- the first oil return hole 41 is connected with the oil separation chamber 30, and the first oil return hole 41 is connected with the oil separation chamber 30.
- the diameter of the oil return hole 41 is smaller than the inner diameter of the oil separation chamber 30 .
- the oil return device 40 is disposed in the oil separation chamber 30, and the diameter of the first oil return hole 41 on the oil return device 40 is smaller than the inner diameter of the oil separation chamber 30, so that it can guide and gather the lubricating oil, so that The lubricating oil can flow toward the first oil return hole 41 to improve the reliability of oil return, while the refrigerant cannot easily pass through the first oil return hole 41 and can be efficiently discharged from the oil outlet 33 .
- the extension direction of the first oil return hole 41 on the oil return device 40 is not limited.
- it can extend along the axial direction of the oil separation chamber 30 (for example, as shown in FIG. 8 ).
- it can extend along a curve or a broken line. , such as first extending along the axial direction of the oil separation chamber 30 and then extending along the radial direction of the oil separation chamber 30 (for example, as shown in FIG. 9 ).
- the outer surface of the first housing 21 has an installation port 214 spaced apart from the refrigerant discharge port 213.
- the installation port 214 can be a process port formed by processing the oil separation chamber 30.
- a plug 60 may be provided at the mounting port 214 to seal the mounting port 214 .
- the oil return device 40 when the oil return device 40 is provided in the oil separation chamber 30 , the oil return device 40 can be spaced apart above the plug 60 (for example, as shown in FIG. 8 ), or the oil return device 40 can be separated from the plug 60 .
- Set up as an integrated structure for example, as shown in Figure 9).
- the oil return device 40 is located below the oil separation outlet 33 , and the two are spaced apart.
- the first oil return hole 41 and the oil separation outlet 33 are located between the oil separation chamber 30 and the first oil return hole 41 .
- the first oil return holes 41 are spaced apart in the axial direction, and are located below the oil outlet 33 .
- the refrigerant is a gaseous refrigerant and the lubricating oil is a liquid
- the lubricating oil will flow downward under the action of its own gravity. to the first oil return hole 41, and the gaseous refrigerant will flow upward to the oil outlet 33 to achieve separation between the two, thereby realizing exhaust and oil return of the electric compressor 100.
- the fluid can also rotate in the circumferential direction, thereby throwing the lubricating oil out of the refrigerant through centrifugal force, thereby achieving the effect of gas-liquid separation.
- a filtering device 54 may also be provided in the oil separation chamber 30 to achieve oil and gas separation through filtration.
- both cyclone separation and filtering device 54 can also be used.
- the refrigerant is suitable to be discharged along the oil separation outlet 33 , the first communication channel 32 and the refrigerant discharge port 213 to realize exhaust of the electric compressor 100 .
- the first oil return hole 41 is connected with the accommodation cavity 215 , and the lubricating oil is suitable to enter the accommodation cavity 215 along the first oil return hole 41 and flow back to the compression component 101 from the accommodation cavity 215 to realize oil return of the electric compressor 100 .
- the oil separation chamber 30 has a second oil return hole 42 on the chamber wall, and the second oil return hole 42 is connected with the first oil return hole 41 .
- a second oil return hole 42 can be provided on the wall of the oil separation chamber 30 .
- the relative position of the first oil return hole 41 and the second oil return hole 42 is not limited.
- the first oil return hole 41 extends in the axial direction (for example, as shown in Figures 1 and 8)
- the second oil return hole 42 may be lower than the first oil return hole 41.
- the second oil return hole 42 may Opposite to the first oil return hole 41 in the radial direction, and so on. This facilitates the rapid discharge of accumulated oil and improves the reliability of oil return.
- the second oil return hole 42 is provided on the wall of the oil separation chamber 30 close to the accommodation chamber 215, and the second oil return hole 42 is connected with the accommodation chamber 215. Therefore, during the actual oil return process of the electric compressor 100, The lubricating oil separated in the oil separation chamber 30 enters the accommodation chamber 215 through the first oil return hole 41 and the second oil return hole 42 in sequence, and flows back to the compression component 101 from the accommodation chamber 215 to realize the return of the electric compressor 100 Oil.
- the extension direction of the axis of the first oil return hole 41 and the extension direction of the axis of the second oil return hole 42 may intersect, so that the lubricating oil can pass through the After the first oil return hole 41 and when it enters the second oil return hole 42, the lubricating oil plays a buffering and decelerating role, thereby avoiding the instability problem caused by the excessive flow rate of the lubricating oil when it enters the accommodation cavity 215.
- the axial distance between the upper end of the oil separation chamber 30 and the first oil return hole 41 is L1
- the axial distance between the oil separation inlet 31 and the first oil return hole 41 is L2.
- There is an oil separation inner tube 52 (that is, at least part of the oil separation inner tube 52 is located in the oil separation chamber 30).
- the inner cavity of the oil separation inner tube 52 is formed into an air outlet chamber 521 connected with the oil separation outlet 33.
- the oil separation inner tube 52 is connected to the first oil return chamber.
- the axial spacing between holes 41 is L3.
- the “axial distance” between the two refers to the minimum distance between the two along the axial extension direction of the oil separation chamber 30 .
- the axial distance between the upper end of the oil separation chamber 30 and the first oil return hole 41 is L1. It can be understood that through the end point of the oil separation chamber 30 in the direction parallel to the axis of the oil separation chamber 30 that is farthest from the first oil return hole 41, and as a first plane perpendicular to the axis of the oil separation chamber 30, through the first oil return hole 41 is a second plane perpendicular to the axis of the oil separation chamber 30 at the end point closest to the oil separation inlet 31 on the axis of the oil separation chamber 30. The vertical distance between the first plane and the second plane is L1.
- the axial distance between the oil inlet 31 and the first oil return hole 41 is L2. It can be understood that the end point of the oil separator inlet 31 closest to the first oil return hole 41 in the direction parallel to the axis of the oil separator chamber 30 is taken as a third plane perpendicular to the axis of the oil separator chamber 30 and passes through the first oil return hole. 41 is a second plane perpendicular to the axis of the oil separation chamber 30 at the end point closest to the oil separation inlet 31 on the axis of the oil separation chamber 30, and the vertical distance between the third plane and the second plane is L2.
- the axial distance between the inner oil pipe 52 and the first oil return hole 41 is L3. It can be understood that through the end point of the inner oil separator pipe 52 in the direction parallel to the axis of the oil separator chamber 30 and closest to the first oil return hole 41, a fourth plane perpendicular to the axis of the oil separator chamber 30 is passed through the first oil return hole.
- the end point of the hole 41 on the axis of the oil separation chamber 30 that is closest to the upper end of the oil separation chamber 30 forms a second plane perpendicular to the axis of the oil separation chamber 30.
- the vertical distance between the fourth plane and the second plane is L3.
- the outer wall of the oil separation inner tube 52 is spaced apart from the cavity wall of the oil separation chamber 30 to form an air inlet chamber 53 , and the oil separation inlet 31 extends along the tangential direction of the oil separation chamber 30 .
- the oil separation inner tube 52 is inserted into the upper area of the oil separation outer tube 50 (or the oil separation chamber wall 22 ), and the outer wall of the oil separation inner tube 52 is spaced apart from the inner wall of the oil separation outer tube 50 (or the oil separation chamber wall 22 ) to form an air inlet chamber. 53.
- the oil separator inlet 31 is located on the oil separator outer tube 50 (or the oil separator chamber wall 22) and extends tangentially, and the oil separator inlet 31 is connected with the air inlet chamber 53.
- the inner cavity of the oil separator inner tube 52 is formed as an air outlet chamber 521, and The upper end of the air outlet chamber 521 is connected to the oil separation outlet 33 , and the lower end of the air outlet chamber 521 is connected to the oil separation chamber 30 .
- the mixed fluid of refrigerant and lubricating oil discharged from the compression component 101 enters the air inlet chamber 53 through the exhaust port 11 , and the mixed fluid realizes the separation of the refrigerant and lubricating oil in the air inlet chamber 53 .
- the refrigerant flows along the air outlet chamber 521
- the lower end of the refrigerant enters the air outlet chamber 521, rises along the axial direction of the air outlet chamber 521, and then enters the first communication channel 32 through the oil outlet 33, and is then discharged from the refrigerant outlet 213 to exhaust the electric compressor 100.
- the separated lubricating oil directly flows downward along the axial direction of the oil separation chamber 30 , is discharged to the accommodation chamber 215 through the first oil return hole 41 and the second oil return hole 42 , and flows back to the compression component 101 from the accommodation chamber 215 , to realize oil return of the electric compressor 100.
- the flow area of the oil separation chamber 30 is S1
- the lower part of the oil separation chamber 30 is provided with a first oil return hole 41
- the flow flow area of the first oil return hole 41 is S3
- the oil separation chamber 30 is provided with an oil return hole 41.
- the inner tube 52 (that is, at least part of the oil separation inner tube 52 is located in the oil separation chamber 30), the inner chamber of the oil separation inner tube 52 is formed as an air outlet chamber 521 connected with the oil separation outlet 33, and the flow area of the air outlet chamber 521 is S2, which satisfies the following At least one of the three conditions, condition one is 0.025 ⁇ S2/S1 ⁇ 0.45, for example, 0.025, 0.035, 0.045, 0.055, 0.1, 0.15, 0.25, 0.3, 0.35, 0.45, etc.; condition two is 0.015 ⁇ S3/ S1 ⁇ 0.4, for example, 0.015, 0.025, 0.03, 0.04, 0.05, 0.15, 0.2, 0.3, 0.38, 0.4, etc.; condition three is 0.15 ⁇ S3/S2 ⁇ 0.65, for example, 0.15, 0.25, 0.3, 0.35, 0.4 , 0.45, 0.5, 0.6, 0.62, 0.65 and so on.
- the flow area of the oil separation chamber 30 is S1
- the flow area of the air outlet chamber 521 is S2
- the flow area of the first oil return hole 41 is S3, any one of the above three conditions needs to be satisfied. Or two conditions, or three conditions. Therefore, it is easy to ensure that the exhaust pressure of the electric compressor 100 is stable, and the electric compressor 100 has optimal exhaust efficiency and oil return efficiency, further meeting the usage requirements of high oil load conditions, and ensuring that the electric compressor 100 efficient and reliable operation.
- the above-mentioned inner oil pipe 52 can be assembled in the first housing 21, for example, the inner oil pipe 52 is inserted into the first housing 21, or the inner oil pipe 52 is connected to the outer oil pipe 50 (assembly connected or (as an integral piece), or the inner oil pipe 52 and the first housing 21 are an integral piece, etc., which are not limited here.
- the axis of the first oil return hole 41 coincides with or is parallel to the axis of the oil separation chamber 30 .
- the separated lubricating oil can flow directly to the first oil return hole 41 along the axial direction of the oil separation chamber 30 , thereby increasing the flow speed of the lubricating oil and thereby improving the oil return efficiency of the electric compressor 100 .
- the oil separator inlet 31 extends along the tangential direction of the oil separator chamber 30 , as shown in FIGS. 1 and 6 , passing through the axis of the oil separator chamber 30 and perpendicular to the axis of the oil separator inlet 31 .
- the plane of the axis is the projection surface
- the area of the orthographic projection of the oil separation inlet 31 on the projection surface is A
- the area of the orthographic projection of the oil separation inlet 31 on the projection surface on one side of the axis of the oil separation chamber 30 is B, where, B/ A is greater than or equal to 80%.
- a second communication channel 34 is formed in the first housing 21 , one end of the second communication channel 34 is connected to the exhaust port 11 of the compression component 101 , and the second communication channel 34 is connected to the exhaust port 11 of the compression component 101 .
- the other end of the communication passage 34 is connected to the oil separator inlet 31 .
- the mixed fluid discharged from the exhaust port 11 can be guided, so that the mixed fluid of gaseous refrigerant and lubricating oil discharged from the compression component 101 is discharged through the exhaust port 11 and then passes through the exhaust port 11.
- the second communication channel 34 flows to the oil separation inlet 31, and then the mixed fluid enters the oil separation chamber 30 to achieve separation.
- the present application is not limited to this.
- the second communication channel 34 may not be processed on the first housing 21 .
- the exhaust port of the compression component 101 11 can be communicated with the accommodation cavity 215, and the accommodation cavity 215 is communicated with the oil separation inlet 31. Therefore, the exhaust port 11 of the compression component 101 can also be connected with the oil separation inlet 31.
- the oil separator inlet 31 can be provided in the first hole section 211 .
- the oil separator inlet 31 is integrated into the first hole section 211 of the first housing 21 , thereby eliminating the need for an external oil separator.
- the pipe 50 is provided with an oil separator inlet 31, and the height of the oil separator inlet 31 can be increased to increase the length of oil and gas separation and improve the oil and gas separation effect.
- the oil separation outlet 33 is located on the axial side of the oil separation chamber 30 away from the first oil return hole 41 , and the axis of the oil separation chamber 30 extends toward the oil separation outlet 33 .
- the direction is the positive extension direction, and the axis extension of the oil separation inlet 31 intersects the positive extension direction of the axis of the oil separation chamber 30 at an angle ⁇ , where 45° ⁇ 90°.
- the lubricating oil separated from the oil separation chamber 30 adheres to the inner wall of the oil separation chamber 30 and uses gravity to influence the flow and accumulates at the bottom of the oil separation chamber 30.
- the included angle ⁇ is too small, the tangential component of the flow rate of the lubricating oil at the oil separation inlet 31 is also too small, and the critical separation speed of the lubricating oil cannot be reached, which can easily lead to oil separation. Invalid.
- the speed of the lubricating oil when entering the oil separator inlet 31 is utilized.
- the axial component improves the oil return capacity of the inner wall surface of the oil separation chamber 30, ensuring that the separated lubricating oil can be quickly discharged from the first oil return hole 41, and ensuring reliable operation of the electric compressor 100.
- the angle between the axial extension of the oil separator inlet 31 and the positive extension direction of the axis of the oil separator chamber 30 satisfies the above value range, it can be ensured that after the refrigerant enters the air outlet chamber 521 along the lower end of the air outlet chamber 521, it can flow along the lower end of the air outlet chamber 521. It rises in the axial direction, then enters the first communication channel 32 through the oil outlet 33, and then is discharged from the refrigerant discharge port 213, so as to realize the exhaust of the electric compressor 100 and improve the exhaust efficiency.
- the axis of the first communication channel 32 is a straight line, and the axial length of the first communication channel 32 is less than the axial length of the oil separation chamber 30 .
- the axis of the passage 32 coincides with or intersects the axis of the oil separation chamber 30 .
- the axial length of the first communication channel 32 is smaller than the axial length of the oil separation chamber 30 , which facilitates the realization of a miniaturized design of the electric compressor 100 , wherein the first communication channel 32
- the axis coincides with or intersects the axis of the oil separation chamber 30, which facilitates reducing the exhaust pressure loss when the electric compressor 100 exhausts, and helps improve the exhaust efficiency.
- the axis of the first housing 21 extends laterally, and the first communication channel 32 is located at the top of the first housing 21 and extends vertically.
- the first communication channel 32 The upper end of the refrigerant discharge port 213 is formed through the top of the first housing 21 , and the oil separation chamber 30 extends downwardly from the lower end of the first communication channel 32 .
- the upper end of the first communication channel 32 passes through the top of the first housing 21 to form a refrigerant discharge port 213 to facilitate the processing and shaping of the refrigerant discharge port 213
- the oil separation chamber 30 extends from the lower end of the first communication channel 32 It extends downward and obliquely in the direction away from the second communication channel 34, so that the oil separation chamber 30 can avoid the part of the compression component 101 extending into the accommodation chamber 215 to avoid interference between the two, which is conducive to reasonable layout and the oil separation chamber 30.
- the extension direction is generally the same as the gravity direction of the lubricating oil, which facilitates the separated lubricating oil to quickly flow along the oil separation chamber 30 to the first oil return hole 41 under the action of its own gravity, which facilitates improving the oil return efficiency of the electric compressor 100 .
- the first communication channel 32 is located obliquely above the compression component 101 and the axis extends vertically.
- the oil separation chamber 30 extends vertically downward from the lower end of the first communication channel 32 , and the oil separation chamber 30 is located at the compression member 101 .
- the side of the component 101 can also avoid the compression component 101 at this time. Therefore, the extension direction of the oil separation chamber 30 is the same as the gravity direction of the lubricating oil, which facilitates the separated lubricating oil to quickly flow along the oil separation chamber 30 to the first oil return hole 41 under the action of its own gravity, which helps to improve the performance of the electric compressor 100 Oil return efficiency.
- the compression component 101 is a rotary compression mechanism, but the specific structure is not limited and can be a single-cylinder compression mechanism or a multi-cylinder compression mechanism.
- the electric compressor 100 may be a horizontal compressor in which the central axis extends in the transverse direction or is slightly inclined to the horizontal line, or it may also be a vertical compressor in which the central axis of the electric compressor 100 extends in the vertical direction or is slightly inclined to the vertical line.
- the compression component 101 is a double-cylinder compression mechanism, including: two cylinders 12, two pistons 13, two bearings 15, a partition 16 and a muffler 17.
- the two cylinders 12 are arranged along the axis.
- the partition plate 16 is sandwiched between the two cylinders 12 , and the two bearings 15 are arranged on both sides of the two bearings 15 .
- Each cylinder 12 is provided with a piston 13, and the crankshaft 14 passes through the two pistons 13 to drive the two pistons 13 to roll in the two cylinders 12 respectively to achieve compression.
- Each bearing 15 has an exhaust port 11 connected with the inner cavity of the cylinder 12 .
- the housing component 102 also includes a bracket 70. One axial end of the first housing 21 is closed, and the other axial end of the first housing 21 is open and closed by the bracket 70. The axial direction of the first housing 21 is in contact with the compression component 101.
- the axial directions of the two bearings 15 are the same and both are transverse.
- a silencer cavity 19 is formed between the bearing 15 of the two bearings 15 close to the bracket 70 and the bracket 70, and the exhaust port 11 on the bearing 15 is connected with the silencer cavity 19, and the other one is connected to the silencer cavity 19.
- a silencer cavity 19 is also formed between the bearing 15 and the muffler 17, and the exhaust port 11 on the bearing 15 is connected with the silencer cavity 19.
- the two cylinders 12, the two bearings 15, and the partition 16 are formed with through-holes.
- the channel 18 and the through channel 18 communicate with the muffler chambers 19 on both sides.
- the muffler chamber 19 defined by the bracket 70 is connected with the oil separator inlet 31 through the second communication channel 34 or the accommodation chamber 215 .
- This application also proposes an air conditioning system 1001.
- an air conditioning system 1001 includes the electric compressor 100 described in any of the above embodiments.
- the electric compressor 100 is provided with the first communication channel 32.
- it can prevent the oil outlet 33 from exhausting into the inner cavity of the first housing 21, so that the refrigerant can directly pass through the first communication channel 32.
- a connecting channel 32 is discharged from the refrigerant discharge port 213, thereby ensuring the stability of the exhaust pressure and ensuring the overall oil and gas separation effect.
- it can avoid the oil separation outlet 33 from being directly connected to the refrigerant discharge port 213, thereby reducing the size of the refrigerant discharge port 213.
- This application also proposes a vehicle 1000 .
- a vehicle 1000 includes a vehicle body and an air conditioning system 1001 mounted on the vehicle body.
- the air conditioning system 1001 is the air conditioning system 1001 described in the above embodiment.
- the electric compressor 100 of the air conditioning system 1001 is provided with the first communication channel 32.
- it can prevent the oil outlet 33 from exhausting into the inner cavity of the first housing 21, so that the refrigerant can It is directly discharged from the refrigerant discharge port 213 through the first communication channel 32, thereby ensuring the stability of the exhaust pressure and ensuring the overall oil and gas separation effect.
- housing component 102 for an electric compressor according to an embodiment of the present application is described.
- a housing component 102 for an electric compressor includes: a first housing 21 and an oil component 5 .
- a refrigerant discharge port 213 is formed on the first housing 21, and an installation area 24 is provided on the first housing 21;
- the oil separation assembly 5 includes an oil separation outer pipe 50 and an oil separation inner pipe 52, and the oil separation outer pipe 50 is assembled in the installation area 24.
- the inner oil pipe 52 is located in the outer oil pipe 50.
- An air inlet chamber 53 is formed between the inner wall of the outer oil pipe 50 and the outer wall of the inner pipe 52.
- the first housing 21 and/or the outer oil pipe 50 has an oil inlet 31.
- the oil inlet 31 extends along the tangential direction of the outer oil pipe 50 and communicates with the air inlet cavity 53.
- the inner cavity of the inner oil pipe 52 is formed into an air outlet cavity 521.
- the air outlet cavity 521 is connected with the refrigerant discharge port 213 and the air inlet cavity 53 respectively.
- the high-pressure refrigerant can flow into the air inlet cavity 53 of the oil separator assembly 5 for gas-liquid separation, and there is no need to reserve the air inlet cavity 53 on the first housing 21 .
- the processing space is conducive to reducing the thickness of the first housing 21, so that the first housing 21 can be flexibly designed.
- the electric compressor 100 is provided with a compression component 101 and a housing component 102.
- the compression component 101 is installed in the inner cavity of the housing component 102.
- the compression component 101 is used to remove the component from the housing component.
- the low-pressure refrigerant is sucked in from outside 102 and compressed.
- the high-pressure refrigerant formed after compression can be discharged from the exhaust port 11 of the compression component 101 and flow to the inner cavity of the housing component 102 .
- the housing component 102 includes a first housing 21 and an oil separation assembly 5 .
- the axis of the first housing 21 extends in the transverse direction (ie, the horizontal direction or generally the horizontal direction).
- a groove along the side is formed in the first housing 21 .
- the oil component 5 is installed into the installation area 24 along its own axial direction.
- a refrigerant discharge port 213 is formed on the outer surface of the first housing 21. The refrigerant discharge port 213 is used to The mounting area 24 is connected to the outside of the first housing 21 .
- the oil separation assembly 5 includes an outer oil separation pipe 50 and an inner oil separation pipe 52 .
- the outer oil separation pipe 50 is configured as a tubular structure.
- the outer diameter of the oil separation outer pipe 50 is equal to the diameter of the installation area 24 .
- the outer oil separation pipe 50 is configured as a tubular structure.
- the outer wall of 50 may be supported at the inner wall of mounting area 24 to be secured within mounting area 24 .
- the inner oil pipe 52 is adapted to extend to the inner cavity of the outer oil pipe 50.
- the inner oil pipe 52 is configured as a tubular structure with a smaller diameter, so that the outer wall of the inner oil pipe 52 can be spaced apart from the inner wall of the outer oil pipe 50, so as to An annular air inlet cavity 53 is formed between the inner oil pipe 52 and the outer oil pipe 50 .
- the first housing 21 may be provided with an oil separator inlet 31; or, referring to FIG. 16, the oil separator outer pipe 50 may be provided with an oil separator inlet 31; or, the first housing 21 and the oil separator outer pipe 50 may be provided with an oil separator inlet 31.
- the oil separator outer pipe 50 is provided with an oil separator inlet 31 , and the oil separator inlet 31 of the first housing 21 and the oil separator inlet 31 of the oil separator outer pipe 50 are in direct communication with each other.
- the oil separation inlet 31 extends along the tangential direction of the oil separation outer pipe 50 and is used to communicate the air intake chamber 53 with the exhaust port 11 of the compression component 101 .
- an air outlet cavity 521 can be formed in the inner cavity of the oil separator inner tube 52.
- the upper end of the air outlet cavity 521 is used to communicate with the refrigerant discharge port 213, and the lower end of the air outlet cavity 521 is used to communicate with the air inlet cavity 53.
- a first oil return hole 41 is formed at the lower end of the tube 50 , and the first oil return hole 41 is used to communicate the air intake chamber 53 with the oil return passage of the compression component 101 .
- the low-pressure refrigerant can be sucked in and compressed by the compression component 101 to form a high-pressure refrigerant.
- the compression component 101 of the electric compressor 100 is adapted to pass through the oil separator inlet 31 to the high-pressure refrigerant.
- the compressed high-pressure refrigerant is discharged into the air inlet chamber 53.
- the high-pressure refrigerant flowing into the air inlet chamber 53 can move around the oil separation inner tube 52 in the air inlet chamber 53 to achieve gas-liquid separation.
- the separated gaseous refrigerant passes through the air outlet chamber 521 from the refrigerant.
- the discharge port 213 is discharged to the outside of the first housing 21 , and the separated lubricating oil can flow to the first oil return hole 41 along the inner wall of the outer oil pipe 50 to flow into the compression component 101 from the oil return channel.
- the first housing 21 is provided with an installation area 24, the oil component 5 is installed in the installation area 24, and an inlet is formed in the oil component 5.
- the air chamber 53 allows the high-pressure refrigerant to flow into the air inlet chamber 53 of the oil separator assembly 5 through the oil separator inlet 31 and perform gas-liquid separation in the air inlet chamber 53. There is no need to reserve the processing of the air inlet chamber 53 on the first housing 21.
- the space is conducive to reducing the thickness of the first housing 21, so that the first housing 21 can be flexibly designed.
- the outer surface of the first housing 21 has an installation port 214 spaced apart from the refrigerant discharge port 213.
- the installation port 214 is correspondingly connected to the installation area 24, and the oil component 5 is adapted to pass through the installation port 214.
- the installation area 24 is installed along the axis of the outer oil separation pipe 50 .
- an installation area 24 extending vertically or obliquely to the vertical direction can be provided in the first housing 21, and the first housing 21 is provided with a refrigerant row at the upper end of the installation area 24.
- the outlet 213 is formed at the lower end of the installation area 24.
- the installation opening 214 is spaced apart from the refrigerant discharge port 213.
- the installation opening 214 is used to connect the installation area 24 with the outside of the first housing 21.
- the installation opening 214 The size is not less than the diameter of the oil component 5, so that the oil component 5 can be installed upward through the installation opening 214 into the installation area 24.
- a plug 60 or a pressure protection device 80 is provided at the installation port 214 .
- the installation opening 214 can be sealed by inserting a plug 60 into the installation opening 214 to prevent the oil separation assembly 5 from leaving the installation area 24 . Therefore, the oil component 5 can be installed into the installation area 24 from the installation port 214 other than the refrigerant discharge port 213, so that the size of the oil component 5 is not limited by the size of the refrigerant discharge port 213, which facilitates flexible arrangement of the refrigerant discharge port 213.
- the installation opening 214 can be sealed by inserting the pressure protection device 80 into the installation opening 214 .
- the pressure protection device 80 can be designed to conform to the installation port 214. After the oil separation assembly 5 is installed in the installation area 24, the pressure protection device 80 can be installed at the installation port 214 to seal the installation area 24. Wherein, the pressure protection device 80 may have a pressure relief safety valve 82.
- the pressure relief safety valve 82 opens to connect the installation area 24 with the outside of the first housing 21, so that the installation area 24
- the high-pressure refrigerant in the first housing 21 can leak to the outside of the first housing 21 to prevent lubricating oil from flowing out from the refrigerant discharge port 213 .
- the pressure protection device 80 can be provided to further include a plug 81 .
- the plug 81 is used to be clamped and fixed at the installation opening 214 .
- the plug 81 is configured to connect the installation area 24 with the outside of the first housing 21 .
- the pressure relief safety valve 82 is suitable for being installed in the air flow channel of the plug 81 and is adapted to be connected when the pressure in the installation area 24 is too high. It can be understood that by installing the pressure relief safety valve 82 on the plug 81 , the installation stability of the pressure relief safety valve 82 is improved, and the reliability of the housing component 102 is improved.
- the plug 81 and the pressure relief safety valve 82 may also be provided as an integral structure.
- a first communication channel 32 is formed on the first housing 21 , and one end of the first communication channel 32 penetrates the outer surface of the first housing 21 to form a refrigerant discharge port 213 . The other end is connected with the air outlet chamber 521.
- the axis of the first housing 21 can be arranged to extend laterally, the first communication channel 32 is located at the top of the first housing 21 and extends vertically, and the upper end of the first communication channel 32
- the refrigerant discharge port 213 is formed through the top of the first housing 21 , and the lower end of the first communication channel 32 is used to communicate with the air outlet chamber 521 , so that the first communication channel 32 can connect the air outlet chamber 521 with the outside of the first housing 21 Connected.
- the separated gaseous refrigerant can flow to the air outlet chamber 521 , and flow out along the air outlet chamber 521 through the first communication channel 32 to the outside of the first housing 21 .
- the problem of the refrigerant flowing from the air outlet chamber 521 into the inner cavity of the first housing 21 and then being discharged from the refrigerant discharge port 213 is solved, thereby improving the stability of the exhaust pressure and improving The gas-liquid separation effect is improved, and the air outlet cavity 521 is prevented from being directly connected to the refrigerant discharge port 213, so that the size and position of the refrigerant discharge port 213 are not affected by the oil separation component 5, which is conducive to meeting different design requirements.
- the axis of the first communication channel 32 is a straight line, and the axial length of the first communication channel 32 is less than the axial length of the external oil separation pipe 50 , and the axis of the first communication channel 32 is connected to the external oil separation pipe.
- the axes of 50 coincide or intersect.
- the axis of the first communication channel 32 can be configured as a straight line, so that the first communication channel 32 can be configured as a columnar shape, and the axial length of the first communication channel 32 can be set to be shorter than the oil content.
- the axial length of the tube 50 makes the axial length of the first communication channel 32 shorter, so that the flow distance of the refrigerant in the first communication channel 32 is shorter.
- the first communication channel 32 is easy to process, the exhaust pressure loss is small, and the exhaust efficiency is high.
- the axis of the first communication channel 32 can be set to coincide with the axis of the outer oil pipe 50 so that the axial direction of the air outlet chamber 521 coincides with the axial direction of the first communication channel 32 .
- the separated refrigerant can sequentially flow through the air outlet chamber 521 and the first communication channel 32 in the same direction to flow out to the outside of the first housing 21 .
- the exhaust pressure loss is small and the exhaust efficiency is high.
- the axis of the first communication channel 32 can be arranged to intersect with the axis of the outer oil pipe 50.
- the axis of the refrigerant discharge port 213 passes through the compression component 101, the axis of the oil component 5 can avoid the compression component 101 to avoid oil separation. Interference occurs between the assembly 5 and the compression component 101, which is beneficial to improving the working stability of the oil separation assembly 5.
- the inner oil pipe 52 is assembled to the first housing 21 , or is connected to the outer oil pipe 50 , or is integrated with the first housing 21 .
- the upper end of the inner oil pipe 52 and the outer oil pipe 50 can be arranged to be staggered along the axis, so that the outer wall of the upper end of the inner oil pipe 52 can be supported on the inner wall of the installation area 24, so that the oil can be
- the outer tube 50 and the inner oil tube 52 are respectively fixed to the installation area 24 of the first housing 21 to achieve stable installation of the oil component 5; or, referring to Figure 18, the inner oil tube 52 can be provided inside the outer oil tube 50.
- the oil separation outer pipe 50 can be fixed to the installation of the first housing 21 In the area 24, the oil separation assembly 5 can be conveniently installed; or, referring to Figures 17, 19 and 20, the oil separation outer pipe 50 can be connected to the lower end of the first communication channel 32 to connect the oil separation inner pipe 52 with the
- the first housing 21 is integrally formed, so that the oil separation assembly 5 can be conveniently installed by installing the oil separation outer pipe 50 in the installation area 24 of the first housing 21 .
- the installation area 24 includes a first hole section 211 and a second hole section 212 arranged coaxially, and the axial ends of the oil separation outer pipe 50 are respectively inserted into the first hole section 211 and the second hole section 212 .
- the two axial ends of the installation area 24 can be divided into a first hole section 211 and a second hole section 212.
- the axial direction of the first hole section 211 coincides with the axial direction of the second hole section 212.
- the oil separation outer pipe 50 extends to the installation area 24, the two axial ends of the oil separation outer pipe 50 can be respectively inserted.
- the oil separation outer pipe 50 is installed in the installation area 24, and the middle part of the oil separation outer pipe 50 in the axial direction can be exposed outward from the disconnection interval 23.
- the first housing 21 can be provided with a cavity at the disconnection interval 23, which is beneficial to reducing the first
- the wall thickness of the housing 21 reduces the weight of the first housing 21, achieving lightweight design and reducing costs.
- one end of the first hole section 211 away from the second hole section 212 is connected to the refrigerant discharge port 213 , and one end of the second hole section 212 away from the first hole section 211 penetrates the first housing 21
- the outer surface of the oil separator assembly 5 is formed as a mounting port 214 , and the oil separator assembly 5 is adapted to be inserted into the second hole segment 212 and the first hole segment 211 along the axis of the oil separator outer pipe 50 through the mounting port 214 .
- the upper end of the installation area 24 can be set as the first hole section 211, and the lower end of the installation area 24 can be set as the second hole section 212.
- the upper end of the first hole section 211 is used to discharge the refrigerant.
- the outlet 213 is connected, and the lower end of the second hole section 212 penetrates the outer surface of the first housing 21 and forms an installation opening 214 .
- the oil component 5 can extend along its own axial direction into the installation space through the installation opening 214, so that the upper end of the oil component 5 can cooperate with the first hole section 211, and the lower end of the oil component 5 can cooperate with the second hole section 212. , to realize the installation of oil separation component 5.
- the oil component 5 can be installed into the installation area 24 from the installation port 214 other than the refrigerant discharge port 213, so that the size of the oil component 5 is not limited by the size of the refrigerant discharge port 213, and the design of the installation area 24 is simple and convenient. Processing takes up little space on the first housing 21 , which facilitates flexible arrangement of the first housing 21 .
- a first communication channel 32 is formed on the first housing 21 , and one end of the first communication channel 32 penetrates the outer surface of the first housing 21 to form a refrigerant discharge port 213 .
- the other end of the channel 32 is connected to an end of the first hole section 211 away from the second hole section 212 .
- the axis of the first housing 21 can be arranged to extend laterally, the first communication channel 32 is located at the top of the first housing 21 and extends vertically, and the upper end of the first communication channel 32
- the refrigerant discharge port 213 is formed through the top of the first shell 21, and the lower end of the first communication channel 32 is used to communicate with the upper end of the first hole section 211, so that the first communication channel 32 can connect the air outlet chamber 521 with the first shell.
- the outside of the body 21 is connected.
- the separated refrigerant can flow to the air outlet chamber 521 , and flow out from the air outlet chamber 521 to the outside of the first housing 21 through the first communication channel 32 .
- the end of the first hole section 211 away from the second hole section 212 is spaced from the refrigerant discharge port 213, so that the centerline and cross-section of the first communication channel 32 can be freely designed, and
- the axis of the first communication channel 32 does not coincide with the axis of the oil component 5
- the axis of the refrigerant discharge port 213 passes through the compression component 101
- the axis of the oil component 5 can avoid the axis of the compression component 101 to avoid the oil component 5 Interference occurs with the compression member 101 .
- the first hole section 211 is a variable cross-section hole and includes a first sub-section 211a and a second sub-section 211b.
- the aperture of the first sub-section 211a is smaller than the aperture of the second sub-section 211b, and the aperture of the first sub-section 211a is smaller than the aperture of the second sub-section 211b.
- a sub-section 211a is located on the side of the second sub-section 211b away from the second hole section 212.
- One axial end of the oil separation outer pipe 50 is plugged into the second sub-section 211b, and one axial end of the oil separation inner pipe 52 is plugged into it.
- An extension section 211c is provided at the first sub-section 211a; or at one end of the first sub-section 211a close to the second hole section 212, and the extension section 211c serves as the oil separation inner pipe 52; or the oil separation inner pipe 52 is connected to the oil separation outer pipe 50.
- the first hole section 211 can be divided into a first sub-section 211a and a second sub-section 211b along the axial direction of the first hole section 211.
- the first sub-section 211a is provided at the upper end of the second sub-section 211b.
- the aperture of the first sub-section 211a is set to be smaller than the aperture of the second sub-section 211b, so that the first hole section 211 is set as a variable cross-section hole, and the aperture of the second sub-section 211b is set to be equal to the diameter of the outer oil separation pipe 50, This allows the outer oil separation pipe 50 to be inserted into the second sub-section 211b.
- the upper end of the oil separation inner pipe 52 and the oil separation outer pipe 50 can be arranged to be staggered along the axis, so that the upper end of the oil separation inner pipe 52 can be inserted into the first sub-section 211a.
- the oil separation outer pipe 50 and the oil separation inner pipe 52 can be Mating with the second sub-section 211b and the first sub-section 211a respectively to achieve stable installation of the oil separation assembly 5; or, referring to Figures 17, 19 and 20, an extension can be provided at the lower end of the first sub-section 211a Section 211c, the extended section 211c is set as the inner oil pipe 52, the extended section 211c extends into the second sub-section 211b and is spaced apart from the inner wall of the second sub-section 211b.
- the extension section 211c can be extended into the inner cavity of the oil separation outer pipe 50 to facilitate the installation of the oil separation assembly 5; or, referring to Figure 18, the oil separation inner pipe 52 can be disposed in the inner cavity of the oil separation outer pipe 50. , and connect the upper end of the oil separation inner pipe 52 with the upper end of the oil separation outer pipe 50, so that the oil separation inner pipe 52 and the oil separation outer pipe 50 are integrally formed. In this way, the oil separation outer pipe 50 can be inserted into the second sub-section 211b, In order to realize the convenient installation of the oil separation component 5.
- a second communication channel 34 is formed on the first housing 21 , the oil inlet 31 is formed on the first hole section 211 , and is connected to the compression chamber of the electric compressor 100 through the second communication channel 34 . Exhaust port 11 of component 101.
- a second communication channel 34 may be formed on the first housing 21 , the second communication channel 34 is arranged to extend laterally, and one end of the second communication channel 34 is connected to the first hole segment 211 are connected, and an oil inlet 31 is formed in the tangential direction of the first hole section 211, and the other end of the second communication channel 34 is used to communicate with the exhaust port 11 of the compression component 101 of the electric compressor 100, so that the first hole section 211 211 can be connected with the exhaust hole of the compression component 101.
- the high-pressure refrigerant can flow from the exhaust port 11 of the compression component 101 to the second communication channel 34 and along the The second communication channel 34 flows into the air inlet chamber 53 to perform gas-liquid separation in the air inlet chamber 53 .
- the second communication channel 34 to connect the air inlet chamber 53 with the exhaust port 11 of the compression component 101, the high-pressure refrigerant flowing out of the compression component 101 can flow into the inlet chamber 53, which is beneficial to improving the flow of high-pressure refrigerant. Stability improves the gas-liquid separation effect of refrigerant.
- the inner cavity of the first housing 21 is formed into an accommodation cavity 215 that communicates with the exhaust port 11 of the compression component 101 of the electric compressor 100 .
- the oil separation inlet 31 is formed on the first hole section 211 or the oil separation outer pipe 50 and is connected with the accommodation cavity 215 .
- the accommodation chamber 215 may be a high-pressure chamber.
- the inner cavity of the first housing 21 can be formed into an accommodation chamber 215.
- the accommodation chamber 215 communicates with the exhaust port 11 of the compression component 101 of the electric compressor 100, and the oil separator inlet 31 communicates with the accommodation chamber 215.
- the accommodating cavity 215 can also serve as an oil reservoir for lubricating oil, and the accommodating cavity 215 is connected to the compression component 101 through an oil return channel.
- the compression component 101 can suck in low-pressure refrigerant and form high-pressure refrigerant after compression.
- the high-pressure refrigerant can flow into the accommodation cavity 215 from the exhaust port 11 of the compression component 101, and part of the lubricating oil is separated.
- the high-pressure refrigerant can flow into the air inlet chamber 53 from the oil separator inlet 31 for gas-liquid separation.
- the separated refrigerant can flow through the air outlet chamber 521 and be discharged from the refrigerant discharge port 213 to the first housing 21 Outside, the separated lubricating oil can flow into the accommodation cavity 215 from the first oil return hole 41 , and the lubricating oil in the accommodation cavity 215 can flow into the compression component 101 from the oil return channel.
- an oil separator inlet 31 may be provided on the first hole section 211 of the first housing 21 , and the oil separator inlet 31 is axially opposite to the oil separator inner tube 52 along the tangential direction of the oil separator outer tube 50 ; or , an oil separator inlet 31 may be provided in the tangential direction of the oil separator outer tube 50, and the oil separator inlet 31 is opposite to the oil separator inner tube 52 in the axial direction.
- a flexible arrangement of the oil separation inlet 31 is achieved, which is beneficial to meet different actual needs.
- the accommodation chamber 215 to communicate with the oil inlet 31 and the exhaust port 11 of the compression component 101 respectively, the high-pressure refrigerant flowing out of the exhaust port 11 can flow into the air intake chamber 53 after flowing through the accommodation chamber 215, which is beneficial to The stroke of the high-pressure refrigerant is increased, which is beneficial to reducing the fluctuation of the high-pressure refrigerant in the air intake chamber 53 and improving the gas-liquid separation effect.
- housing component 102 for an electric compressor according to some specific embodiments of the present application is described.
- the housing component 102 includes a first housing 21 and an oil separation assembly 5 .
- the axis of the first housing 21 extends transversely, and a mounting assembly is formed in the first housing 21 .
- Area 24, the installation area 24 is divided into a first hole section 211 and a second hole section 212 spaced apart in the up and down direction.
- the first hole section 211 and the second hole section 212 are coaxially arranged, and the first hole section 211 is provided with The first sub-section 211a and the second sub-section 211b, the aperture of the first sub-section 211a is smaller than the aperture of the second sub-section 211b to configure the first hole section 211 as a variable cross-section hole.
- the lower end of the second hole section 212 is open outward to form an installation opening 214.
- the oil separation assembly 5 can be installed into the installation area 24 along its own axis (ie, the axis of the oil separation outer pipe 50) through the installation opening 214, and the oil separation assembly 5 is installed Once completed, a plug 60 may be installed within the mounting opening 214 to seal the mounting opening 214 .
- the oil separation assembly 5 includes an oil separation outer tube 50 and an oil separation inner tube 52.
- the oil separation outer tube 50 is configured as a circular tubular structure.
- the upper end of the oil separation outer tube 50 is used to be inserted into the second sub-section 211b of the first hole section 211, and the oil separation
- the lower end of the outer tube 50 is used to be inserted into the second hole section 212 to fix the oil separation outer tube 50 in the installation area 24 .
- the inner oil pipe 52 is constructed as a circular tubular structure with a smaller diameter.
- the upper end of the inner pipe 52 is inserted into the first sub-section 211a of the first hole section 211 , and the lower end of the inner pipe 52 extends to the inside of the outer pipe 50 .
- the outer wall of the oil separation inner tube 52 can be spaced apart from the inner wall of the oil separation outer tube 50 to form an annular air inlet chamber 53 between the oil separation inner tube 52 and the oil separation outer tube 50 .
- the inner cavity of the oil separation inner tube 52 is formed with an air outlet chamber 521 connected with the air inlet chamber 53
- the lower end of the oil separation outer tube 50 is provided with a first oil return hole 41 connected with the oil return channel.
- the first housing 21 is provided with a first communication channel 32.
- the first communication channel 32 is located at the top of the first housing 21 and extends vertically. The upper end of the first communication channel 32 passes through the top of the first housing 21 to form a refrigerant.
- the discharge port 213 and the lower end of the first communication channel 32 are connected with the air outlet chamber 521 .
- the first housing 21 is also provided with a second communication channel 34.
- the second communication channel 34 is arranged to extend in the transverse direction.
- One end of the second communication channel 34 is connected with the inner cavity of the second sub-section 211b, so that in the second sub-section
- An oil separator inlet 31 extending tangentially along the outer oil separator pipe 50 is formed on 211b, and the other end of the second communication channel 34 is used to communicate with the exhaust port 11 of the compression component 101.
- the low-pressure refrigerant can be sucked in and compressed by the compression component 101 to form a high-pressure refrigerant.
- the compression component 101 is adapted to pass through the exhaust port 11 to the second communication channel.
- High-pressure refrigerant is introduced into 34, and the high-pressure refrigerant flows along the second communication channel 34 and is discharged into the air intake chamber 53 through the oil separation inlet 31.
- the high-pressure refrigerant flowing into the air intake chamber 53 can move around the oil separation inner tube 52 in the air intake chamber 53.
- the separated gaseous refrigerant flows through the air outlet chamber 521 and the first communication channel 32 to be discharged from the refrigerant discharge port 213 to the outside of the first housing 21 .
- the separated lubricating oil can be along the outer oil pipe 50
- the inner wall flows toward the first oil return hole 41 to flow into the compression component 101 from the oil return passage.
- the differences between this embodiment and the above-mentioned embodiments shown in Figures 11-13 include: the inner cavity of the first housing 21 is formed into a receiving cavity 215.
- the cavity 215 is connected to the exhaust port 11 of the compression component 101 of the electric compressor 100.
- the first hole section 211 of the first housing 21 is provided with an oil separator inlet 31.
- the oil separator inlet 31 is connected to the accommodating cavity 215.
- the accommodating cavity 215 can also be As an oil reservoir for lubricating oil, the accommodation chamber 215 is connected to the inner cavity of the compression component 101 through an oil return passage.
- the compression component 101 can suck in low-pressure refrigerant and form high-pressure refrigerant after compression.
- the high-pressure refrigerant can flow into the accommodation cavity 215 from the exhaust port 11 of the compression component 101, and part of the lubricating oil is separated.
- the high-pressure refrigerant can flow into the air inlet chamber 53 from the oil separator inlet 31 for gas-liquid separation.
- the separated refrigerant can flow through the air outlet chamber 521 and be discharged from the refrigerant discharge port 213 to the first housing 21 Outside, the separated lubricating oil can flow into the accommodation cavity 215 from the first oil return hole 41 , and the lubricating oil in the accommodation cavity 215 can flow into the compression component 101 from the oil return channel.
- the differences between this embodiment and the embodiments shown in FIGS. 11 to 13 include: the inner cavity of the first housing 21 is formed into a receiving cavity 215 , and the receiving cavity 215 and The exhaust port 11 of the compression component 101 of the electric compressor 100 is connected.
- the outer oil pipe 50 is provided with an oil inlet 31 in the tangential direction.
- the oil inlet 31 is connected with the accommodation chamber 215.
- the accommodation chamber 215 can also be used as an oil storage pool for lubricating oil.
- the accommodation chamber 215 communicates with the compression component 101 through the oil return passage. In this way, when the electric compressor 100 is powered and operating normally, the compression component 101 can suck in low-pressure refrigerant and form high-pressure refrigerant after compression.
- the high-pressure refrigerant can flow into the accommodation cavity 215 from the exhaust port 11 of the compression component 101, and part of the lubricating oil is separated.
- the high-pressure refrigerant can flow into the air inlet chamber 53 from the oil separator inlet 31 for gas-liquid separation.
- the separated refrigerant can flow through the air outlet chamber 521 and be discharged from the refrigerant discharge port 213 to the first housing 21 Outside, the separated lubricating oil can flow into the accommodation cavity 215 from the first oil return hole 41 , and the lubricating oil in the accommodation cavity 215 can flow into the compression component 101 from the oil return channel.
- the differences between this embodiment and the embodiments shown in Figures 11-13 include: the lower end of the first sub-section 211a is provided with an extension section 211c, and the extension section 211c extends to The extension section 211c is arranged inside the second sub-section 211b and spaced apart from the inner wall of the second sub-section 211b.
- the extension section 211c is set as the oil separation inner pipe 52. When the oil separation outer pipe 50 is inserted into the second sub-section 211b, the extension section 211c extends to the oil separation section.
- An air inlet chamber 53 is formed in the inner cavity of the outer tube 50 .
- the inner cavity of the first housing 21 is formed as a receiving chamber 215.
- the receiving chamber 215 is connected with the exhaust port 11 of the compression component 101 of the electric compressor 100.
- the first hole section 211 of the first housing 21 is provided with an oil separator inlet 31.
- the oil separator inlet 31 is axially opposite to the oil separator inner tube 52 and communicates with the accommodating cavity 215.
- the accommodating cavity 215 can also serve as an oil reservoir for lubricating oil.
- the accommodating cavity 215 communicates with the compression component 101 through an oil return channel.
- the differences between this embodiment and the embodiments shown in Figures 11-13 include: the inner oil pipe 52 is provided in the inner cavity of the outer oil pipe 50, and the oil pipe is The upper end of the pipe 52 is connected to the upper end of the oil separation outer pipe 50, so that the oil separation inner pipe 52 and the oil separation outer pipe 50 are integrally formed.
- the oil separation assembly 5 can be installed.
- the differences between this embodiment and the embodiments shown in Figures 11-13 include: the lower end of the second sub-section 211b is opened outward to form an installation opening 214, and the oil can
- the component 5 can be installed into the installation area 24 along its own axis through the installation port 214, and after the oil separation component 5 is installed, a pressure protection device 80 can be installed in the installation port 214.
- the pressure protection device 80 includes a pressure relief safety device connected to the assembly.
- the valve 82 and the plug 81 are clamped and fixed at the installation port 214.
- the plug 81 is provided with an air flow channel that connects the installation area 24 with the outside of the first housing 21.
- the pressure relief safety valve 82 is suitable for installation at The air flow channel of the plug 81 is adapted to communicate when the pressure in the installation area 24 is too high.
- An extension section 211c is provided at the lower end of the first sub-section 211a.
- the extension section 211c extends into the second sub-section 211b and is spaced apart from the inner wall of the second sub-section 211b.
- the extension section 211c is set as the oil separation inner pipe 52. When the oil separation is outside When the tube 50 is inserted into the second sub-section 211b, the extension section 211c extends into the inner cavity of the outer oil separator tube 50 to form an air inlet cavity 53.
- the inner cavity of the first housing 21 is formed as a receiving chamber 215.
- the receiving chamber 215 is connected with the exhaust port 11 of the compression component 101 of the electric compressor 100.
- the first hole section 211 of the first housing 21 is provided with an oil separator inlet 31.
- the oil separator inlet 31 is axially opposite to the oil separator inner tube 52 and communicates with the accommodating cavity 215.
- the accommodating cavity 215 can also serve as an oil reservoir for lubricating oil.
- the accommodating cavity 215 communicates with the compression component 101 through an oil return channel.
- the differences between this embodiment and the embodiments shown in Figures 11-13 include: the lower end of the second sub-section 211b is opened outward to form an installation opening 214, and the oil can
- the component 5 can be installed into the installation area 24 along its own axis through the installation port 214, and after the oil separation component 5 is installed, a pressure protection device 80 can be installed in the installation port 214.
- the pressure protection device 80 includes an integrated pressure relief safety device. Valve 82 and plug 81, the pressure relief safety valve 82 is adapted to be installed in the installation port 214 through the plug 81 and is adapted to communicate when the pressure in the installation area 24 is too high.
- An extension section 211c is provided at the lower end of the first sub-section 211a.
- the extension section 211c extends into the second sub-section 211b and is spaced apart from the inner wall of the second sub-section 211b.
- the extension section 211c is set as the oil separation inner pipe 52. When the oil separation is outside When the tube 50 is inserted into the second sub-section 211b, the extension section 211c extends into the inner cavity of the outer oil separator tube 50 to form an air inlet cavity 53.
- the inner cavity of the first housing 21 is formed as a receiving chamber 215.
- the receiving chamber 215 is connected with the exhaust port 11 of the compression component 101 of the electric compressor 100.
- the first hole section 211 of the first housing 21 is provided with an oil separator inlet 31.
- the oil inlet 31 is opposite to the oil inner tube 52 in the axial direction and communicates with the accommodation chamber 215.
- the accommodation chamber 215 can also serve as an oil reservoir for lubricating oil.
- the accommodation chamber 215 communicates with the compression component 101 through the oil return channel.
- This application also proposes an electric compressor 100.
- an electric compressor 100 includes: a housing component 102, a compression component 101 and a motor component.
- the housing component 102 includes the housing component 102 for the electric compressor of any of the above embodiments;
- the compression component 101 is provided in the housing component 102 and is used to compress the refrigerant.
- the refrigerant compressed by the compression component 101 is suitable for passing through the oil component. 5 is discharged from the refrigerant discharge port 213;
- the motor component is provided in the housing component 102 and is used to drive the compression component 101 to perform compression work.
- the electric compressor 100 is provided with a compression part 101, a housing part 102, and a motor part.
- the housing component 102 includes a first housing 21 and an oil separation assembly 5 .
- the axis of the first housing 21 extends in the transverse direction (that is, in the horizontal direction).
- An installation area is formed in the first housing 21 . 24.
- the oil separation assembly 5 extends along its axial direction into the installation area 24.
- a refrigerant discharge port 213 is formed on the outer surface of the first housing 21. The refrigerant discharge port 213 is used to connect the installation area 24 with the outside of the first housing 21. Connected.
- the oil separation assembly 5 includes an oil separation outer pipe 50 and an oil separation inner pipe 52.
- the oil separation outer pipe 50 is configured as a tubular structure.
- the outer diameter of the oil separation outer pipe 50 is equal to the diameter of the installation area 24.
- the outer wall of the oil separation outer pipe 50 can be supported in the installation area 24.
- the inner wall is fixed in the installation area 24.
- the inner oil pipe 52 is adapted to extend to the inner cavity of the outer oil pipe 50.
- the inner oil pipe 52 is configured as a tubular structure with a smaller diameter.
- the outer wall of the inner oil pipe 52 can be spaced apart from the inner wall of the outer oil pipe 50, so as to prevent the oil from discharging.
- An annular air inlet cavity 53 is formed between the inner tube 52 and the outer oil separator tube 50 .
- the compression component 101 is suitable for being installed in the inner cavity of the first shell 21.
- the compression component 101 is used to absorb low-pressure refrigerant and compress the low-pressure refrigerant.
- the compression component 101 is provided with an exhaust port 11, and the compressed high-pressure refrigerant can be exhausted from the exhaust port. Exhaust from port 11. 12, the first housing 21 may be provided with an oil separator inlet 31; or, referring to FIG. 18, the oil separator outer pipe 50 may be provided with an oil separator inlet 31; or, the first housing 21 and the oil separator outer pipe 50 may be provided with an oil separator inlet 31.
- the oil separator outer pipe 50 is provided with an oil separator inlet 31 , and the oil separator inlet 31 of the first housing 21 and the oil separator inlet 31 of the oil separator outer pipe 50 are in direct communication with each other.
- the oil separation inlet 31 extends along the tangential direction of the oil separation outer pipe 50 and is used to communicate the air intake chamber 53 with the exhaust port 11 of the compression component 101 .
- an air outlet cavity 521 can be formed in the inner cavity of the oil separator inner tube 52. The upper end of the air outlet cavity 521 is used to communicate with the refrigerant discharge port 213, and the lower end of the air outlet cavity 521 is used to communicate with the air inlet cavity 53.
- a first oil return hole 41 is formed at the lower end of the tube 50 , and the first oil return hole 41 is used to communicate the air intake chamber 53 with the oil return passage of the compression component 101 .
- the motor component can be installed in the inner cavity of the first housing 21 and spaced apart from the compression component 101. The motor component is used to drive the compression component 101 to compress the sucked refrigerant.
- the compression component 101 can suck low-pressure refrigerant from the outside of the first housing 21, and the motor component applies torque to the compression component 101, so that the compression component 101 can pump low-pressure refrigerant.
- the refrigerant is compressed to form high-pressure refrigerant.
- the compression component 101 of the electric compressor 100 is adapted to discharge the high-pressure refrigerant outward through the exhaust port 11, so that the high-pressure refrigerant can flow into the air intake chamber 53 through the oil separator inlet 31, and the high-pressure refrigerant flowing into the air intake chamber 53 can flow into the air intake chamber 53.
- the inner oil separation tube 52 moves around to achieve gas-liquid separation.
- the separated gaseous refrigerant is discharged from the refrigerant discharge port 213 to the outside of the first housing 21 through the air outlet chamber 521.
- the separated lubricating oil can be along the inner wall of the oil separation outer tube 50. It flows to the first oil return hole 41 to flow into the compression component 101 from the oil return passage.
- the first housing 21 is provided with an installation area 24, the oil component 5 is installed in the installation area 24, and an air inlet chamber 53 is formed in the oil component 5, so that high pressure
- the refrigerant can flow into the air inlet chamber 53 of the oil separator assembly 5 through the oil separator inlet 31 and perform gas-liquid separation in the air inlet chamber 53.
- the thickness of the first housing 21 allows the first housing 21 to be flexibly designed, which facilitates the flexible design of the electric compressor 100 .
- This application also proposes an air conditioning system 1001.
- an air conditioning system 1001 includes the electric compressor 100 of any of the above embodiments.
- the oil component assembly 5 is installed in the installation area 24 , and an air inlet chamber 53 is formed in the oil component assembly 5 , so that high-pressure refrigerant can flow into the oil component assembly 5 through the oil separator inlet 31
- the gas-liquid separation is carried out in and within the air inlet cavity 53, and there is no need to reserve a processing space for the air inlet cavity 53 on the first housing 21, which is conducive to reducing the thickness of the first housing 21, making the first housing
- the body 21 can be flexibly designed, which facilitates the flexible design of the electric compressor 100 and improves the rationality of the layout of the air conditioning system 1001.
- This application also proposes a vehicle 1000.
- a vehicle 1000 includes: a vehicle body and an air conditioning system 1001 mounted on the vehicle body.
- the air conditioning system 1001 is the air conditioning system 1001 of any of the above embodiments.
- the oil component assembly 5 is installed in the installation area 24 , and an air inlet chamber 53 is formed in the oil component assembly 5 , so that high-pressure refrigerant can flow into the oil component assembly 5 through the oil separator inlet 31
- the gas-liquid separation is carried out in and within the air inlet cavity 53, and there is no need to reserve a processing space for the air inlet cavity 53 on the first housing 21, which is conducive to reducing the thickness of the first housing 21, making the first housing
- the body 21 can be flexibly designed, which facilitates the flexible design of the electric compressor 100, improves the rationality of the layout of the air conditioning system 1001, and improves the overall performance of the vehicle 1000.
- vehicle 1000 can be a traditional fuel vehicle or a new energy vehicle.
- the new energy vehicle includes but is not limited to pure electric vehicle. , extended-range electric vehicles, hybrid electric vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc.
- the new energy vehicle may be a pure electric vehicle with an electric motor as the main driving force.
- the new energy vehicle may be a hybrid vehicle with an internal combustion engine and an electric motor as the main driving force simultaneously.
- the internal combustion engine and motor that provide driving power for new energy vehicles mentioned in the above embodiments can use gasoline, diesel, hydrogen, etc. as fuel, and the way to provide electric energy to the motor can use power batteries, hydrogen fuel cells, etc., There are no special restrictions here. It should be noted that this is only an illustrative description of structures such as new energy vehicles and does not limit the scope of protection of the present application.
- first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include one or more of these features. In the description of this application, “plurality” means two or more, unless otherwise explicitly and specifically limited.
- connection In this application, unless otherwise clearly stated and limited, the terms “installation”, “connection”, “connection”, “fixing” and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements.
- connection connection
- fixing and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements.
- a first feature being “on” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. touch.
- the terms “above”, “above” and “above” the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature.
- "Below”, “below” and “beneath” the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.
- references to the terms “one embodiment,” “some embodiments,” “an example,” “specific examples,” or “some examples” or the like means that specific features are described in connection with the embodiment or example. , structures, materials or features are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification unless they are inconsistent with each other.
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Abstract
一种电动压缩机(100),包括:壳体部件(102)、压缩部件(101)和电机部件,压缩部件(101)设于壳体部件(102)内且用于压缩冷媒;电机部件设于壳体部件(102)内且用于驱动压缩部件(101)执行压缩工作;其中,壳体部件(102)包括第一壳体(21),压缩部件(101)的至少部分收纳于第一壳体(21)内,第一壳体(21)上形成有冷媒排出口(213),第一壳体(21)设有油分腔(30),油分腔(30)的油分入口(31)与压缩部件(101)的排气口连通,油分腔(30)的油分出口(33)与冷媒排出口(213)连通。
Description
相关申请的交叉引用
本申请基于申请号为202210714055.3、申请日为2022年06月22日的中国专利申请、申请号为202221588899.X、申请日为2022年06月22日的中国专利申请、申请号为202210714054.9、申请日为2022年06月22日以及申请号为202221588912.1、申请日为2022年06月22日提出,并要求上述中国专利申请的优先权,上述中国专利申请的全部内容在此引入本申请作为参考。
本申请涉及压缩机技术领域,特别是涉及一种电动压缩机、空调系统和车辆。
电动压缩机为车辆用制冷设备的核心部件,是一种效率高、噪声低且运转平稳的容积式压缩机,被广泛应用于汽车空调系统,近年来,随着新能源汽车的发展,汽车对空调压缩机噪声、振动及耐久性等的要求进一步提高。电动压缩机,如涡旋压缩机、滚动转子压缩机等,在使用过程中,需要提供润滑油对电动压缩机内的摩擦副进行润滑,以减小摩擦副工作时产生的噪声。但是,一部分润滑油会跟随压缩机的排气流出,致使润滑油不足,影响压缩机的可靠性。
公开内容
本公开旨在至少在一定程度上解决相关技术中的技术问题之一。为此,本公开的第一个目的在于提出一种电动压缩机,具有油气分离的作用,改善电动压缩机内润滑油不足的问题,提高电动压缩机的可靠性。
本申请还提出一种具有上述电动压缩机的空调系统。
本申请还提出一种具有上述空调系统的车辆。
根据本申请实施例的电动压缩机,包括:壳体部件;压缩部件,所述压缩部件设于所述壳体部件内且用于压缩冷媒;和电机部件,所述电机部件设于所述壳体部件内且用于驱动所述压缩部件执行压缩工作;其中,所述壳体部件包括第一壳体,所述压缩部件的至少部分收纳于所述第一壳体内,所述第一壳体上形成有冷媒排出口,所述第一壳体设有油分腔,所述油分腔的油分入口与所述压缩部件的排气口连通,所述油分腔的油分出口与所述冷媒排出口连通。
根据本申请一些实施例的电动压缩机,所述第一壳体上装配有油分外管,所述油分外管的内腔形成所述油分腔的至少部分。
根据本申请一些实施例的电动压缩机,所述油分外管的下端具有渐缩管,且所述渐缩管的下端口形成为第一回油孔,所述第一回油孔的孔径小于所述油分腔的内径。
根据本申请一些实施例的电动压缩机,所述第一壳体的外表面上具有与所述冷媒排出口间隔设置的安装口,所述油分外管适于沿自身轴线通过所述安装口装入所述第一壳体。
根据本申请一些实施例的电动压缩机,所述壳体上具有同轴设置的第一孔段和第二孔段,所述油分外管的轴向两端分别插配于所述第一孔段和所述第二孔段,所述第一孔段与所述第二孔段之间具有断开间隔,所述第二孔段的远离所述第一孔段的一端贯穿所述第一壳体的外表面以形成为所述安装口。
根据本申请一些实施例的电动压缩机,所述第一壳体上形成有第一连通通道,所述第一连通通道的一端贯穿所述第一壳体的外表面以形成为所述冷媒排出口,所述第一连通通道的另一端与所述第一孔段的远离所述第二孔段的一端相连。
根据本申请一些实施例的电动压缩机,所述第一壳体上形成有第二连通通道,所述油分入口形成在所述第一孔段上,且通过所述第二连通通道连通至所述排气口。
根据本申请一些实施例的电动压缩机,还包括油分内管,所述油分内管位于所述油分外管内,所述油分外管的内壁与所述油分内管的外壁之间形成进气腔,所述第一壳体和/或所述油分外管上具有所述油分入口,所述油分入口沿所述油分外管的切向延伸且与所述进气腔连通,所述油分内管的内腔形成为出气腔,所述出气腔与所述冷媒排出口和所述进气腔分别连通。
根据本申请一些实施例的电动压缩机,所述油分内管装配于所述第一壳体、或者与所述油分外管相连、或者与所述第一壳体为一体件。
根据本申请一些实施例的电动压缩机,所述第一壳体自身限定出所述油分腔。
根据本申请一些实施例的电动压缩机,所述油分腔内的下部设有回油装置,所述回油装置上具有第一回油孔,所述第一回油孔的孔径小于所述油分腔的内径。
根据本申请一些实施例的电动压缩机,所述油分腔的腔壁上具有第二回油孔,所述第二回油孔与所述第一回油孔连通。
根据本申请一些实施例的电动压缩机,所述油分腔的上端与所述第一回油孔之间的轴向间距为L1,所述油分入口与所述第一回油孔之间的轴向间距为L2,所述油分腔内设有油分内管,所述油分内管的内腔形成为与所述油分出口连通的出气腔,所述油分内管与所述第一回油孔之间的轴向间距为L3,其中,0.2L1<L3<L2。
根据本申请一些实施例的电动压缩机,所述油分腔的过流面积为S1,所述油分腔的下部设有第一回油孔,所述第一回油孔的过流面积为S3,所述油分腔内设有油分内管,所述油分内管的内腔形成为与所述油分出口连通的出气腔,所述出气腔的过流面积为S2,满足以下三个条件中的至少一个,条件一为0.025≤S2/S1≤0.45,条件二为0.015≤S3/S1≤0.4,条件三为0.15≤S3/S2≤0.65。
根据本申请一些实施例的电动压缩机,所述油分入口沿所述油分腔的切向延伸,以过所述油分腔的轴线且垂直于所述油分入口的轴线的平面为投影面,所述油分入口在所述投影面上的正投影的面积为A,所述正投影的位于所述油分腔轴线的一侧的面积为B,其中,B/A大于等于80%。
根据本申请一些实施例的电动压缩机,所述油分出口设于所述油分腔的轴向一侧,所述油分腔的轴线延伸方向上的朝向所述油分出口的方向为正延伸方向,所述油分入口的轴线延伸方向与所述油分腔的轴线正延伸方向相交夹角θ,其中,45°≤θ≤90°。
根据本申请一些实施例的电动压缩机,所述第一壳体的壳壁内形成有第一连通通道,所述油分出口通过所述第一连通通道与所述冷媒排出口连通。
根据本申请一些实施例的电动压缩机,所述第一连通通道的轴线为直线,且所述第一连通通道的轴向长度小于所述油分腔的轴向长度,所述第一连通通道的轴线与所述油分腔的轴线重合或相交。
根据本申请一些实施例的电动压缩机,所述第一壳体的轴线沿横向延伸,所述第一连通通道位于所述第一壳体的顶部且沿竖向延伸,所述第一连通通道的上端贯穿所述第一壳体的顶部以形成所述冷媒排出口,所述油分腔自所述第一连通通道的下端向下倾斜延伸。
根据本申请实施例的空调系统,包括根据上述任一实施例所述的电动压缩机。
根据本申请实施例的车辆,包括:车本体和搭载于所述车本体的空调系统,所述空调系统为根据上述任一实施例所述的空调系统。
本公开附加的方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,或通过本公开的实践了解到。
图1是根据本申请一个实施例的电动压缩机的剖面图;
图2是图1中所示的电动压缩机的另一视角的剖面图;
图3是图1中所示的电动压缩机的透视效果图;
图4是根据本申请一个实施例的壳体部件的透视图;
图5是根据本申请另一个实施例的壳体部件的透视图;
图6是根据本申请一个实施例的壳体部件的剖视图;
图7是根据本申请一个实施例的电动压缩机的剖面图;
图8是根据本申请另一个实施例的电动压缩机的剖面图;
图9是根据本申请又一个实施例的电动压缩机的剖面图;
图10是根据本申请再一个实施例的电动压缩机的剖面图;
图11是根据本申请一个实施例的电动压缩机的一个剖视图;
图12是图11中所示的电动压缩机的另一个剖视图;
图13是图11中所示的电动压缩机的轴测图;
图14是根据本申请一个实施例的电动压缩机的一个剖视图;
图15是图14中所示的电动压缩机的另一个剖视图;
图16是根据本申请一个实施例的电动压缩机的剖视图;
图17是根据本申请一个实施例的电动压缩机的剖视图;
图18是根据本申请一个实施例的电动压缩机的剖视图;
图19是根据本申请一个实施例的电动压缩机的剖视图;
图20是根据本申请一个实施例的电动压缩机的剖视图;
图21是根据本申请一个实施例的车辆的示意图。
附图标记:
车辆1000,
空调系统1001,
电动压缩机100,
压缩部件101,排气口11,气缸12,活塞13,曲轴14,
轴承15,隔板16,消音器17,贯通通道18,消音腔19,
壳体部件102,
第一壳体21,第一孔段211,第一子段211a,第二子段211b,延伸段211c,第二孔段212,冷媒排出口213,安装口214,容纳腔215,
油分腔壁22,断开间隔23,安装区域24,
油分腔30,油分入口31,第一连通通道32,油分出口33,第二连通通道34,
回油装置40,第一回油孔41,第二回油孔42,
油分组件5,油分外管50,渐缩管51,油分内管52,出气腔521,进气腔53,过滤装置54,
堵塞60,支架70,压力保护装置80,堵头81,泄压安全阀82。
具体实施方式
下面详细描述本公开的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,旨在用于解释本公开,而不能理解为对本公开的限制。
下面,参照附图,描述根据本申请实施例的电动压缩机100。
如图1所示,根据本申请实施例的电动压缩机100,包括:压缩部件101和壳体部件102。
结合图2,压缩部件101包括气缸12、活塞13和曲轴14,活塞13设于气缸12内,曲轴14与活塞13相连以用于驱动活塞13转动。可以理解的是,电动压缩机100还可以包括驱动电机,驱动电机驱动曲轴14转动,以使压缩部件101执行压缩工作。
壳体部件102包括第一壳体21,压缩部件101的至少部分收纳于第一壳体21内,从而可以提高电动压缩机100的结构紧凑性。
第一壳体21上形成有冷媒排出口213,第一壳体21设有油分腔30,油分腔30的油分入口31与压缩部件101的排气口11连通,第一壳体21的壳壁内形成有第一连通通道32,油分腔30的油分出口33通过第一连通通道32与冷媒排出口213连通。
需要说明的是,上述的“第一壳体21设有油分腔30”当作广义理解,例如可以包括:如图1-图3中的油分腔30由装配在第一壳体21上的油分外管50限定出,即第一壳体21与油分外管50为分体式设计,从而便于自由设计由油分外管50限定出的油分腔30的轴线和截面面积,以满足不同设计要求。或者,例如还可以包括:如图10和图8所示,油分腔30可以是一体形成在第一壳体21上,从而不需单独对油分腔30进行装配,利于简化生产步骤。
示例性地,第一壳体21的内腔形成为容纳腔215,压缩部件101的至少部分位于容纳腔215内,其中,如图2所示,压缩部件101具有压缩腔,且压缩腔具有排气口11,压缩腔内的压缩后的冷媒适于经排气口11排出,且排气口11与油分腔30的油分入口31连通,油分腔30的油分出口33通过第一连通通道32与冷媒排出口213连通,由此,经油分腔30的油分出口33排出的冷媒只会流向第一连通通道32,然后从冷媒排出口213排出,而不存在经油分腔30的油分出口33排出的冷媒,先进入容纳腔215、再进入第一连通通道32的情况。
其中,压缩部件101工作需要润滑油,冷媒排出时会混合有润滑油,油分腔30的设置可以将冷媒中混合的润滑油分离,提升电动压缩机100的性能。
在电动压缩机100的实际运行过程中,由压缩腔排出的气态冷媒与润滑油的混合流体经由排气口11排出,且该混合流体经由油分入口31进入油分腔30,然后该混合流体在油分腔30内气液分离,即该混合流体中的气态冷媒和润滑油分离,接着,气态冷媒经由油分出口33进入第一连通通道32,且流经第一连通通道32由冷媒排出口213排出,从而实现电动压缩机100的排气。
可选地,容纳腔215可作为存储润滑油的储油池,在该情况下,油分腔30分离后的润滑油可由油分腔30排至容纳腔215内,储油池再将润滑油提供给压缩部件101,或者油分腔30还可以将分离出的润滑油经由其他排油路径直接提供给压缩部件101。由此,都可以实现电动压缩机100的回油,以确保电动压缩机100的高效、可靠运行。
由此,通过设置油分腔30,能够对压缩腔排出的冷媒与润滑油的混合流体进行气液分离,以实现电动压缩机100的排气和回油,确保电动压缩机100的高效、可靠运行。
示例性地,当容纳腔215作为存储润滑油的储油池时,如果油分出口33是先向第一壳体21的容纳腔215排气,受润滑油的影响,会产生排气压力不稳定的问题,而且排气还容易将容纳腔215内储存的润滑油带走,失去前期采用油分腔30气液分离的意义,无法确保电动压缩机100的高效、可靠运行。
而本申请的实施例中,通过在第一壳体21的壳壁内(即壁厚空间内)设置第一连通通道32,且第一连通通道32连通油分出口33与冷媒排出口213,使得气态冷媒可直接经由油分出口33、第一连通通道32和冷媒排出口213排出,从而能够避免出现油分出口33先向第一壳体21的容纳腔215内排气,再由冷媒排出口213排气的问题,进而能够保证电动压缩机100的排气稳定性,且可以保证电动压缩机100的气液分离和回油效果。
进一步地,第一壳体21内形成有容纳腔215,压缩部件101的至少部分位于容纳腔215内,例如:电动压缩机100构造为转子压缩机,且现有的转子压缩机的泵体结构导致其压缩部件101设置在容纳腔215中心,油分腔30无法与冷媒排出口213同轴布局。受限制于此,转子压缩机的油分腔30容易出现无法加工、直径偏小以及无法安装等问题,无法达到最优的油分离效率,难以保证高负载工况等部分情况下的回油润滑要求,容易出现窜气或冷媒泄露现象,从而导致电动压缩机100的制冷量下降、压缩效率降低,甚至无法满足电动压缩机100的可靠性需求。
而本申请的实施例中,通过在第一壳体21的壳壁内(即壁厚空间内)设置第一连通通道32,且第一连通通道32连通油分出口33与冷媒排出口213,能够避免油分出口33直接与冷媒排出口213连通,从而使得冷媒排出口213的尺寸和位置均不对油分腔30造成影响,例如可以自由设计第一连通通道32的轴线和截面面积,且冷媒排出口213也可以进行灵活设计,以满足不同的设计要求。
根据本申请实施例的电动压缩机100,对于压缩部件101的至少部分收纳于第一壳体21内这种紧凑结构来说,通过在第一壳体21的壳壁内(即壁厚空间内)设置连通油分出口33与冷媒排出口213的第一连通通道32,一方面,能够避免油分出口33向第一壳体21的内腔排气,以使冷媒能够直接经由第一连通通道32从冷媒排出口213排出,从而保证排气的压力稳定,保证整体油气分离效果,另一方面,能够避免油分出口33直接与冷媒排出口213连通,从而使得冷媒排出口213的尺寸和位置均不对油分腔30造成影响,以使得冷媒排出口213和油分腔30均能够灵活设计,以使得冷媒排出口213和油分腔30的设计均能够满足不同的设计要求。综上,可以保证电动压缩机100回油充足,且结构简单合理,利于确保电动压缩机高效、可靠运行。
在一些实施例中,如图1所示,第一壳体21上装配有油分外管50,油分外管50的内腔形成油分腔30的至少部分。也就是说,油分外管50与第一壳体21为分体式结构,且油分外管50插接于第一壳体21内。由此,无须在第一壳体21上加工油分腔30,降低对第一壳体21的结构要求和壁厚要求,使得第一壳体21可以灵活设计。
进一步地,如图1、图3-图10所示,油分外管50的下端具有渐缩管51,且渐缩管51的下端口形成为第一回油孔41,第一回油孔41的孔径小于油分腔30的内径。
例如,如图1所示,渐缩管51的管壁的轴截面形状可构造为直线,或者如图10所示,渐缩管51的管壁的轴截面形状可构造为弧线,在此不做限定。
例如,渐缩管51与油分外管50相连的一端的内径与油分外管50的内径相同,即渐缩管51与油分外管50相连的一端的内径与油分腔30的内径相同,从而使得润滑油能够沿油分腔30的腔壁进入渐缩管51,且润滑油的流动方向上,渐缩管51的内径逐渐减小,以在渐缩管51远离油分外管50的一端形成第一回油孔41,且使得第一回油孔41的孔径小于油分腔30的内径。
由此,通过设置渐缩管51,使得润滑油在流向第一回油孔41时,内径逐渐减小的渐缩管51的内壁能够对润滑油起到导向、汇聚的作用,以使润滑油能够朝向第一回油孔41流动,提高回油可靠性,而冷媒不容易通过第一回油孔41,可以高效地从油分出口33排出。
在一些实施例中,如图1所示,第一壳体21上具有第一孔段211和第二孔段212,油分外管50的上下两端分别插配于第一孔段211和第二孔段212。例如,第一孔段211和第二孔段212均沿同一轴向朝向靠近彼此的方向延伸,且第一孔段211和第二孔段212沿同一轴向间隔开。
由此,便于实现油分外管50与第一壳体21的装配,且油分外管50的上下两端分别与第一孔段211和第二孔段212插配配合,即油分外管50的上下两端的外壁分别与第一孔段211和第二孔段212的内壁相抵,一方面能够增强油分外管50的结构稳定性和油分外管50与第一孔段211和第二孔段212之间的密封性,另一方面,利于降低油分外管50与第一壳体21的装配难度,提高结构紧凑性。
例如图1所示,第二孔段212的壁面上具有第二回油孔42,第二回油孔42低于渐缩管51的下端,且与第一回油孔41连通。由此,便于积油快速排出,提高回油可靠性。
例如,在润滑油的流动方向上,第二回油孔42位于渐缩管51的下游,且油分腔30与第二孔段212的内部空间连通,第二回油孔42与容纳腔215连通,以便于油分腔30内分离后的润滑油能够依次经由第一回油孔41、第二回油孔42进入容纳腔215内,并由容纳腔215回流至压缩部件101,以实现电动压缩机100的回油。
如图1、图3-图5所示,第一壳体21的外表面上具有与冷媒排出口213间隔设置的安装口214,油分外管50适于沿自身轴线(及油分外管50的轴线)通过安装口214装入第一壳体21。
由此,本申请中的油分外管50不需由冷媒排出口213装入第一壳体21,而是从冷媒排出口213以外的安装口214将油分外管50装入第一壳体21,从而使得油分外管50的尺寸不受冷媒排出口213的尺寸限制,例如,冷媒排出口213即便很小,油分外管50的尺寸也可以较大。
由此,使得油分外管50的设计、冷媒排出口213的设计均能够满足不同的设计要求,进而保证电动压缩机100回油充足。
可选地,安装口214处可以设置堵塞60,堵塞60用于密封安装口214,此外,在一些实施例中,也可以将堵塞60设计为具有压力保护功能。
在另外一些实施例中,如图8和图10所示,第一壳体21自身限定出油分腔30。也就是说,油分腔30一体形成在第一壳体21上。由此,省去了装配油分外管50的步骤,减少零件,降低成本。或者说,油分腔壁22与第一壳体21集成设置,进而不需单独设置油分腔30,利于简化生产步骤,提高生产效率,
例如图8和图10所示,第一壳体21具有油分腔壁22,油分腔壁22内形成有油分腔30,且油分入口31形成于油分腔壁22上,且油分入口31与压缩部件101的排气口11直接或间接连通。
进一步地,如图8所示,油分腔30内的下部设有回油装置40,回油装置40上具有第一回油孔41,第一回油孔41与油分腔30连通,且第一回油孔41的孔径小于油分腔30的内径。其中,回油装置40设置于油分腔30内,且回油装置40上的第一回油孔41的孔径小于油分腔30的内径,从而能够对润滑油起到导向、汇聚的作用,以使润滑油能够朝向第一回油孔41流动,提高回油可靠性,而冷媒不容易通过第一回油孔41,可以高效地从油分出口33排出。
需要说明的是,回油装置40上的第一回油孔41的延伸方向不限,例如可以沿油分腔30的轴向延伸(例如图8所示),又例如,可以沿曲线或者折线延伸,如先沿油分腔30的轴向延伸、再沿油分腔30的径向延伸(例如图9所示)。
可选地,如图8和图9所示,第一壳体21的外表面上具有与冷媒排出口213间隔设置的安装口214,安装口214可以为加工油分腔30所形成的工艺口,可以在安装口214处设置堵塞60以密封安装口214。示例性地,油分腔30内设有回油装置40时,回油装置40可以间隔开地设在堵塞60的上方(例如图8所示),或者,也可以将回油装置40与堵塞60设置为一体结构(例如图9所示)。
例如图8所示,在油分腔30的轴向上,回油装置40位于油分出口33的下方,且二者间隔开设置,换言之,第一回油孔41与油分出口33在油分腔30的轴向上间隔开分布,第一回油孔41位于油分出口33的下方。
需要说明的是,由于冷媒为气态冷媒,润滑油为液体,因此,在压缩腔排出的气态冷媒与润滑油的混合流体进入油分腔30后,润滑油在自身重力的作用下会向下流动,以流向第一回油孔41,且气态冷媒会向上流向油分出口33,实现二者分离,进而实现电动压缩机100的排气和回油。此外,当油分入口31沿油分腔30的切向延伸时,流体还可以沿周向回转,从而通过离心力将润滑油从冷媒中甩出,起到气液分离的效果。
当然,本申请不限于此,也可以并不是利用切向进入,实现旋风分离的原理,例如图10所示,还可以在油分腔30内设置过滤装置54,通过过滤实现油气分离。当然,也可以既采用旋风分离,又采用过滤装置54。
例如,当混合流体沿油分入口31进入油分腔30后,冷媒适于沿油分出口33、第一连通通道32和冷媒排出口213排出,以实现电动压缩机100的排气。第一回油孔41与容纳腔215连通,润滑油适于沿第一回油孔41进入容纳腔215,并由容纳腔215回流至压缩部件101,以实现电动压缩机100的回油。
更进一步地,如图1、图8和图9所示,油分腔30的腔壁上具有第二回油孔42,第二回油孔42与第一回油孔41连通。例如,无论是回油装置40限定出第一回油孔41,还是回油装置40限定出第一回油孔,都可以在油分腔30的腔壁上设置第二回油孔42。其中,第一回油孔41与第二回油孔42的相对位置不限,例如,当第一回油孔41沿轴向延伸时(例如图1和图8所示),第二回油孔42可以低于第一回油孔41,又例如,当第一回油孔41先沿油分腔30的轴向延伸、再沿油分腔30的径向延伸时,第二回油孔42可以与第一回油孔41沿径向正对,等等。由此,便于积油快速排出,提高回油可靠性。
例如,第二回油孔42设于油分腔30靠近容纳腔215的腔壁上,且第二回油孔42与容纳腔215连通,由此,在电动压缩机100的实际回油过程中,在油分腔30内分离后的润滑油依次经由第一回油孔41、第二回油孔42进入容纳腔215内,并由容纳腔215回流至压缩部件101,以实现电动压缩机100的回油。
可选地,图1和图8所示的实施例中,第一回油孔41的轴线的延伸方向与第二回油孔42的轴线的延伸方向均可以相交,从而能够在润滑油在通过第一回油孔41后,且进入第二回油孔42时对润滑油起到缓冲、减速的作用,进而避免润滑油的流速过快而在进入容纳腔215时引发的不稳定问题。
如图6所示,油分腔30的上端与第一回油孔41之间的轴向间距为L1,油分入口31与第一回油孔41之间的轴向间距为L2,油分腔30内设有油分内管52(即油分内管52的至少部分位于油分腔30内),油分内管52的内腔形成为与油分出口33连通的出气腔521,油分内管52与第一回油孔41之间的轴向间距为L3。
需要说明的是,两者之间的“轴向间距”指的是:沿油分腔30的轴线延伸方向,两者之间的最小距离。
油分腔30的上端与第一回油孔41之间的轴向间距为L1。可以理解为,过油分腔30在平行于油分腔30的轴线的方向上的最远离第一回油孔41的端点,作垂直于油分腔30的轴线的第一平面,过第一回油孔41在油分腔30的轴线上的最靠近油分入口31的端点,作垂直于油分腔30的轴线的第二平面,第一平面与第二平面之间的垂直距离为L1。
油分入口31与第一回油孔41之间的轴向间距为L2。可以理解为,过油分入口31在平行于油分腔30的轴线的方向上的最靠近第一回油孔41的端点,作垂直于油分腔30的轴线的第三平面,过第一回油孔41在油分腔30的轴线上的最靠近油分入口31的端点,作垂直于油分腔30的轴线的第二平面,第三平面与第二平面之间的垂直距离为L2。
油分内管52与第一回油孔41之间的轴向间距为L3。可以理解为,过油分内管52在平行于油分腔30的轴线的方向上的最靠近第一回油孔41的端点,作垂直于油分腔30的轴线的第四平面,过第一回油孔41在油分腔30的轴线上的最靠近油分腔30的上端的端点,作垂直于油分腔30的轴线的第二平面,第四平面与第二平面之间的垂直距离为L3。
在一些实施例中,0.2L1<L3<L2。
需要说明的是,传统的油分腔的设计方案一般在普通工况下能实现较好的油分离效果,但是在油分离负荷较重的工况下却无法满足要求。申请人发现,油分腔30内会出现“二次卷吸”的现象,也就是说,油分内管52的入口位置设置不当,在冷媒排出的同时,会将腔内本已分离出来的润滑油又再次带走。
因此,本申请通过控制油分内管52与第一回油孔41之间的轴向间距L3在上述比例范围内进行取值,能够在保证油分离效率的同时,避免油分腔30内出现“二次卷吸”的现象。
由此,当L1、L2和L3之间满足上述关系时,便于保证电动压缩机100的排气压力稳定,且使得电动压缩机100具有最优的排气效率和回油效率,确保电动压缩机100的高效、可靠运行。例如,油分内管52的外壁与油分腔30的腔壁间隔开以形成进气腔53,油分入口31沿油分腔30的切向延伸。
例如,油分内管52插入油分外管50(或油分腔壁22)靠上的区域,油分内管52的外壁与油分外管50(或油分腔壁22)的内壁间隔开以形成进气腔53,油分入口31设于油分外管50(或油分腔壁22)上且沿切向延伸,且油分入口31与进气腔53连通,油分内管52的内腔形成为出气腔521,且出气腔521的上端与油分出口33连通,出气腔521的下端与油分腔30连通。
由此,压缩部件101排出的冷媒与润滑油的混合流体经由排气口11进入进气腔53,且混合流体在进气腔53内实现冷媒与润滑油的分离,接着,冷媒沿出气腔521的下端进入出气腔521,并沿出气腔521的轴向上升,然后经由油分出口33进入第一连通通道32,接着由冷媒排出口213排出,以实现电动压缩机100的排气。例如,分离后的润滑油直接沿油分腔30的轴向向下流动,且经由第一回油孔41、第二回油孔42排出至容纳腔215,并由容纳腔215回流至压缩部件101,以实现电动压缩机100的回油。
在一些实施例中,油分腔30的过流面积为S1,油分腔30的下部设有第一回油孔41,第一回油孔41的过流面积为S3,油分腔30内设有油分内管52(即油分内管52的至少部分位于油分腔30内),油分内管52的内腔形成为与油分出口33连通的出气腔521,出气腔521的过流面积为S2,满足以下三个条件中的至少一个,条件一为0.025≤S2/S1≤0.45,例如,0.025、0.035、0.045、0.055、0.1、0.15、0.25、0.3、0.35、0.45等等;条件二为0.015≤S3/S1≤0.4,例如,0.015、0.025、0.03、0.04、0.05、0.15、0.2、0.3、0.38、0.4等等;条件三为0.15≤S3/S2≤0.65,例如,0.15、0.25、0.3、0.35、0.4、0.45、0.5、0.6、0.62、0.65等等。
通过控制出气腔521的过流面积S2与油分腔30的过流面积S1的比例满足上述取值范围,利于实现更好的离心分离效率。进一步满足油分负荷较高工况的使用要求。
通过控制第一回油孔41的过流面积S3与油分腔30的过流面积S1的比例满足上述取值范围,利于确保第一回油孔41截面通过充分利用离心流场压力分布的影响,产生足够的压力驱动力,确保分离出来的润滑油能顺利通过第一回油孔41排出。进一步满足油分负荷较高工况的使用要求。
通过控制第一回油孔41的过流面积S3与出气腔521的过流面积S2的比例满足上述取值范围,能够避免第一回油孔41出现窜气导致油分失效。进一步满足油分负荷较高工况的使用要求。
也就是说,油分腔30的过流面积为S1、出气腔521的过流面积为S2和第一回油孔41的过流面积为S3之间需要满足上述三个条件中的任意一个条件、或者两个条件、或者三个条件。由此,便于保证电动压缩机100的排气压力稳定,且使得电动压缩机100具有最优的排气效率和回油效率,进一步满足油分负荷较高工况的使用要求,确保电动压缩机100的高效、可靠运行。
需要说明的是,上述的油分内管52可以是装配于第一壳体21、例如油分内管52插接于第一壳体21,或者油分内管52与油分外管50相连(装配相连或者为一体件)、或者油分内管52与第一壳体21为一体件等等,在此不做限定。
在一些实施例中,第一回油孔41的轴线与油分腔30轴线重合或平行。由此,便于分离后的润滑油直接沿油分腔30的轴向流向第一回油孔41,从而便于提高润滑油的流动速度,进而提高电动压缩机100的回油效率。
在一些实施例中,如图3-图5所示,油分入口31沿油分腔30的切向延伸,如图1和图6所示,以过油分腔30的轴线且垂直于油分入口31的轴线的平面为投影面,油分入口31在投影面上的正投影的面积为A,油分入口31在投影面上的正投影的位于油分腔30轴线的一侧的面积为B,其中,B/A大于等于80%。由此,保证进气口径足够,切向旋转力足够,可以提高旋风分离冷媒和润滑油的效率,提高排气效率和回油效率。并且,确保油分进口31流入的冷媒能以相同的方向切向进入油分腔30,达到润滑油颗粒的临界分离速度,形成有效的离心分离流场形态,保证旋风分离冷媒和润滑油的效率。
在一些实施例中,如图2-图3所示,第一壳体21内形成有第二连通通道34,第二连通通道34的一端与压缩部件101的排气口11连通,且第二连通通道34的另一端与油分入口31连通。
由此,通过设置第二连通通道34,能够对排气口11排出的混合流体起到导向的作用,以使压缩部件101排出的气态冷媒与润滑油的混合流体经由排气口11排出后经由第二连通通道34流向油分入口31,接着该混合流体进入油分腔30实现分离。
当然,本申请不限于此,例如在其他实施例中,如图7-图8所示,第一壳体21上也可以未加工第二连通通道34,此时,压缩部件101的排气口11可以与容纳腔215连通,容纳腔215与油分入口31连通,由此,也可以实现压缩部件101的排气口11与油分入口31连通。
可选地,如图1所示,油分入口31可以设于第一孔段211,由此,将油分入口31集成设置于第一壳体21的第一孔段211,从而不需在油分外管50上设置油分入口31,且可以提升油分入口31的高度,提升油气分离的长度,提升油气分离效果。
在一些实施例中,如图4和图5所示,油分出口33设于油分腔30远离第一回油孔41的轴向一侧,油分腔30的轴线延伸方向上的朝向油分出口33的方向为正延伸方向,油分入口31的轴线延伸与油分腔30的轴线正延伸方向相交夹角θ,其中,45°≤θ≤90°。
需要说明的是,油分腔30分离出来的润滑油粘附在油分腔30内壁,并利用重力影响流动并积聚在油分腔30底部,对于流量较低或系统油循环率较小的状态下,容易出现回油不畅的情况,且通过计算分析发现,夹角θ过小时,润滑油在油分入口31处流速的切向分量也过小,也就无法达到润滑油的临界分离速度,容易导致油分失效。
而本申请中,通过控制油分入口31的轴线延伸与油分腔30的轴线正延伸方向相交夹角θ,且θ满足:45°≤θ≤90°,以利用润滑油进入油分入口31时的速度的轴向分量,提高油分腔30的内壁面的回油能力,确保分离出来的润滑油能从第一回油孔41快速排出,确保电动压缩机100可靠运行。
例如,油分入口31的轴线延伸与油分腔30的轴线正延伸方向的夹角θ=90°(如图4所示),或者油分入口31的轴线延伸与油分腔30的轴线正延伸方向的夹角θ=60°,再或者油分入口31的轴线延伸与油分腔30的轴线正延伸方向的夹角θ=80°(如图5所示)。
由此,当油分入口31的轴线延伸与油分腔30的轴线正延伸方向的夹角满足上述取值范围时,能够保证冷媒沿出气腔521的下端进入出气腔521后,能够沿出气腔521的轴向上升,然后经由油分出口33进入第一连通通道32,接着由冷媒排出口213排出,以实现电动压缩机100的排气,提高排气效率。
在一些实施例中,如图1、图3-图8所示,第一连通通道32的轴线为直线,且第一连通通道32的轴向长度小于油分腔30的轴向长度,第一连通通道32的轴线与油分腔30的轴线重合或相交。
由此,便于第一连通通道32的加工成型,且第一连通通道32的轴向长度小于油分腔30的轴向长度,利于实现电动压缩机100的小型化设计,其中,第一连通通道32的轴线与油分腔30的轴线重合或相交,便于在电动压缩机100排气时,减少排气压力损失,利于提高排气效率。
在一些实施例中,如图1-图3所示,第一壳体21的轴线沿横向延伸,第一连通通道32位于第一壳体21的顶部且沿竖向延伸,第一连通通道32的上端贯穿第一壳体21的顶部以形成冷媒排出口213,油分腔30自第一连通通道32的下端向下倾斜延伸。
例如图5所示,第一连通通道32的上端贯穿第一壳体21的顶部以形成冷媒排出口213,以便于冷媒排出口213的加工成型,且油分腔30自第一连通通道32的下端向下朝向远离第二连通通道34的方向倾斜延伸,以便于油分腔30对伸至容纳腔215内的部分压缩部件101进行避让,以避免二者发生干涉,利于合理布局,且油分腔30的延伸方向与润滑油的重力方向大体相同,利于分离后的润滑油能够在自身重力的作用下快速地沿油分腔30流向第一回油孔41,利于提高电动压缩机100的回油效率。
或者,如图4所示,第一连通通道32位于压缩部件101的斜上方且轴线沿竖向延伸,油分腔30自第一连通通道32的下端向下竖直延伸,且油分腔30位于压缩部件101的侧面,此时,也可以避让压缩部件101。由此油分腔30的延伸方向与润滑油的重力方向相同,利于分离后的润滑油能够在自身重力的作用下快速地沿油分腔30流向第一回油孔41,利于提高电动压缩机100的回油效率。
需要说明的是,根据本申请实施例的压缩部件101为回转式压缩机构,但具体构成不限,可以为单缸压缩机构或多缸压缩机构。此外,电动压缩机100的中心轴线沿横向延伸或稍微倾斜于水平线的卧式压缩机,又例如还可以为中心轴线沿竖向延伸或稍微倾斜于竖直线的立式压缩机等等。
例如在图2所示的示例中,压缩部件101为双缸压缩机构,包括:两个气缸12、两个活塞13、两个轴承15、隔板16和消音器17,两个气缸12沿轴向间隔设置,隔板16夹设在两个气缸12之间,两个轴承15设在两个轴承15的两侧。每个气缸12内均设有活塞13,曲轴14贯穿两个活塞13,以驱动两个活塞13分别在两个气缸12内滚动,实现压缩。每个轴承15上均具有与气缸12的内腔连通的排气口11。
壳体部件102还包括支架70,第一壳体21的轴向一端封闭,第一壳体21的轴向另一端敞开,且通过支架70封闭,第一壳体21的轴向与压缩部件101的轴向相同且均为横向,两个轴承15中靠近支架70的一个轴承15与支架70之间形成消音腔19,且该轴承15上的排气口11与该消音腔19连通,另一个轴承15与消音器17之间也形成消音腔19,且该轴承15上的排气口11与该消音腔19连通,两个气缸12、两个轴承15、隔板16上形成有贯穿的贯通通道18,贯通通道18连通两侧的消音腔19,由支架70参与限定的消音腔19通过第二连通通道34或容纳腔215与油分入口31连通。
本申请还提出了一种空调系统1001。
如图21所示,根据本申请实施例的空调系统1001,包括上述任一项实施例所述的电动压缩机100。
根据本申请实施例的空调系统1001,其电动压缩机100通过设置第一连通通道32,一方面,能够避免油分出口33向第一壳体21的内腔排气,以使冷媒能够直接经由第一连通通道32从冷媒排出口213排出,从而保证排气的压力稳定,保证整体油气分离效果,另一方面,能够避免油分出口33直接与冷媒排出口213连通,从而使得冷媒排出口213的尺寸和位置均不对油分腔30造成影响,以使得冷媒排出口213和油分腔30均能够灵活设计,以使得冷媒排出口213和油分腔30的设计均能够满足不同的设计要求。综上,可以保证电动压缩机100回油充足,且结构简单合理,利于确保电动压缩机高效、可靠运行。
本申请还提出了一种车辆1000。
如图21所示,根据本申请实施例的车辆1000,包括:车本体和搭载于所述车本体的空调系统1001,所述空调系统1001为上述实施例所述的空调系统1001。
根据本申请实施例的车辆1000,其空调系统1001的电动压缩机100通过设置第一连通通道32,一方面,能够避免油分出口33向第一壳体21的内腔排气,以使冷媒能够直接经由第一连通通道32从冷媒排出口213排出,从而保证排气的压力稳定,保证整体油气分离效果,另一方面,能够避免油分出口33直接与冷媒排出口213连通,从而使得冷媒排出口213的尺寸和位置均不对油分腔30造成影响,以使得冷媒排出口213和油分腔30均能够灵活设计,以使得冷媒排出口213和油分腔30的设计均能够满足不同的设计要求。综上,可以保证电动压缩机100回油充足,且结构简单合理,利于确保电动压缩机高效、可靠运行。
下面,参考附图,描述根据本申请实施例的用于电动压缩机的壳体部件102。
参照图11-图13,根据本申请实施例的用于电动压缩机的壳体部件102,包括:第一壳体21和油分组件5。其中,第一壳体21上形成有冷媒排出口213,第一壳体21上具有安装区域24;油分组件5包括油分外管50和油分内管52,油分外管50装配于安装区域24,油分内管52位于油分外管50内,油分外管50的内壁与油分内管52的外壁之间形成进气腔53,第一壳体21和/或油分外管50上具有油分入口31,油分入口31沿油分外管50的切向延伸且与进气腔53连通,油分内管52的内腔形成为出气腔521,出气腔521与冷媒排出口213和进气腔53分别连通。
由此,通过在油分组件5内形成有进气腔53,使得高压冷媒可以流入油分组件5的进气腔53内进行气液分离,无须在第一壳体21上预留进气腔53的加工空间,利于减小第一壳体21的厚度,使得第一壳体21可以灵活设计。
例如图11-图13所示的实施例,电动压缩机100设有压缩部件101和壳体部件102,压缩部件101安装在壳体部件102的内腔中,压缩部件101用于从壳体部件102外吸入低压冷媒并进行压缩,压缩后形成的高压冷媒可以从压缩部件101的排气口11排出且流向壳体部件102的内腔。参照图12所示,壳体部件102包括第一壳体21和油分组件5,第一壳体21的轴线沿横向(即水平方向或大体水平方向)延伸,第一壳体21内形成有沿竖向或者倾斜于竖向延伸的安装区域24,油分组件5沿自身的轴向安装至安装区域24内,第一壳体21的外表面形成有冷媒排出口213,冷媒排出口213用于将安装区域24与第一壳体21的外侧连通。
如图11和图12所示,油分组件5包括油分外管50和油分内管52,油分外管50构造为管状结构,油分外管50的外径与安装区域24的直径相等,油分外管50的外壁可以支撑在安装区域24的内壁处以固定在安装区域24内。油分内管52适于伸至油分外管50的内腔,油分内管52构造为直径较小的管状结构,使得油分内管52的外壁可以和油分外管50的内壁间隔开设置,以在油分内管52与油分外管50之间形成有环状的进气腔53。
其中,参照图12,可以在第一壳体21上设有油分入口31;或者,参照图16,可以在油分外管50上设有油分入口31;又或者,可以在第一壳体21和油分外管50上均设有油分入口31,第一壳体21的油分入口31和油分外管50的油分入口31正对连通。油分入口31沿油分外管50的切向延伸,油分入口31用于将进气腔53与压缩部件101的排气口11连通。同时,可以在油分内管52的内腔形成有出气腔521,出气腔521的上端用于与冷媒排出口213连通,且出气腔521的下端用于与进气腔53连通,且在油分外管50的下端形成有第一回油孔41,第一回油孔41用于将进气腔53与压缩部件101的回油通道连通。
在具体的工作过程中,当电动压缩机100得电正常运行时,低压冷媒可以被吸入,并经过压缩部件101的压缩形成高压冷媒,电动压缩机100的压缩部件101适于通过油分入口31向进气腔53排入压缩后的高压冷媒,流入进气腔53的高压冷媒可以在进气腔53内围绕油分内管52运动以实现气液分离,分离出的气态冷媒通过出气腔521从冷媒排出口213排出到第一壳体21外,分离出的润滑油可以沿着油分外管50的内壁流向第一回油孔41,以从回油通道流入压缩部件101内。
根据本申请实施例的用于电动压缩机的壳体部件102,通过在第一壳体21上设有安装区域24,安装区域24内安装有油分组件5,且在油分组件5内形成有进气腔53,使得高压冷媒可以通过油分入口31流入油分组件5的进气腔53内并在进气腔53内进行气液分离,无须在第一壳体21上预留进气腔53的加工空间,利于减小第一壳体21的厚度,使得第一壳体21可以灵活设计。
在本申请的一些实施例中,第一壳体21的外表面上具有与冷媒排出口213间隔设置的安装口214,安装口214与安装区域24对应连通,油分组件5适于通过安装口214沿油分外管50的轴线装入安装区域24。
例如,参照图12和图13,可以在第一壳体21内设有沿竖向或者倾斜于竖向延伸的安装区域24,第一壳体21位于安装区域24的上端位置处设有冷媒排出口213,且在安装区域24的下端形成有安装口214,安装口214与冷媒排出口213间隔开设置,安装口214用于将安装区域24与第一壳体21的外侧连通,安装口214的尺寸不小于油分组件5的直径,使得油分组件5可以向上通过安装口214装入安装区域24内。
在本申请的一些实施例中,安装口214处设有堵塞60或压力保护装置80。
例如,参照图15-图16,当油分组件5安装完成后,可以通过在安装口214内塞入堵塞60密封安装口214,以避免油分组件5脱离安装区域24。由此,可以将油分组件5从冷媒排出口213以外的安装口214装入安装区域24,使得油分组件5的尺寸不受冷媒排出口213的尺寸限制,利于实现冷媒排出口213的灵活布置。
例如,参照图19和图20,当油分组件5安装完成后,可以通过在安装口214内塞入压力保护装置80密封安装口214。其中,压力保护装置80相对于安装口214可以随形设计,当油分组件5安装至安装区域24后,压力保护装置80可以安装在安装口214处,以对安装区域24进行密封。其中,压力保护装置80可以具有泄压安全阀82,当安装区域24内的压强过大时,泄压安全阀82打开以将安装区域24与第一壳体21的外侧连通,使得安装区域24内的高压冷媒可以泄露至第一壳体21的外侧,以避免润滑油从冷媒排出口213流出。
例如,参照图19,可以设置压力保护装置80还包括堵头81,堵头81用于卡接固定在安装口214处,堵头81设有将安装区域24与第一壳体21的外侧连通的气流通道,泄压安全阀82适于安装在堵头81的气流通道内且适于在安装区域24的压强过大时连通。可以理解的是,通过将泄压安全阀82安装在堵头81上,利于提高泄压安全阀82的安装稳定性,提高了壳体部件102的可靠性。或者,参照图20,也可以将堵头81与泄压安全阀82设置为一体结构。
在本申请的一些实施例中,第一壳体21上形成有第一连通通道32,第一连通通道32的一端贯穿第一壳体21的外表面以形成为冷媒排出口213,连通通道的另一端与出气腔521连通。
例如,参照图11-图13所示,可以设置第一壳体21的轴线沿横向延伸,第一连通通道32位于第一壳体21的顶部且沿竖向延伸,第一连通通道32的上端贯穿第一壳体21的顶部以形成冷媒排出口213,且第一连通通道32的下端用于与出气腔521连通,使得第一连通通道32可以将出气腔521与第一壳体21的外侧连通。这样,当高压冷媒在进气腔53内完成气液分离后,分离出的气态冷媒可以流向出气腔521,并沿出气腔521通过第一连通通道32流出至第一壳体21的外侧。
可以理解的是,通过设置第一连通通道32,解决了冷媒从出气腔521流入第一壳体21的内腔后再从冷媒排出口213排出的问题,提高了排气压力的稳定性,提高了气液分离效果,避免了出气腔521直接与冷媒排出口213连通,使得冷媒排出口213的尺寸和位置不受油分组件5的影响,利于满足不同设计要求。
在本申请的一些实施例中,第一连通通道32的轴线为直线,且第一连通通道32的轴向长度小于油分外管50的轴向长度,第一连通通道32的轴线与油分外管50的轴线重合或相交。
例如,参照图12和图13所示,可以将第一连通通道32的轴线构造为直线,以将第一连通通道32构造为柱状,且可以设置第一连通通道32的轴向长度小于油分外管50的轴向长度,使得第一连通通道32的轴向长度较短,使得冷媒在第一连通通道32内的流动距离较短。由此,使得第一连通通道32便于加工,且排气压力损失小,排气效率高。
例如,可以设置第一连通通道32的轴线与油分外管50的轴线重合,使得出气腔521的轴向与第一连通通道32的轴向重合,这样,当高压冷媒在进气腔53内完成气液分离后,分离出的冷媒可以沿同一方向依次流经出气腔521、第一连通通道32以流出至第一壳体21的外侧,排气压力损失小,排气效率高。或者,可以设置第一连通通道32的轴线与油分外管50的轴线相交,这样,若冷媒排出口213的轴线穿过压缩部件101,油分组件5的轴线可以避开压缩部件101,以避免油分组件5与压缩部件101之间产生干涉,利于提高油分组件5的工作稳定性。
在本申请的一些实施例中,油分内管52装配于第一壳体21、或者与油分外管50相连、或者与第一壳体21为一体件。例如,参照图12-图16,可以设置油分内管52的上端与油分外管50沿轴线错开,使得油分内管52上端的外壁可以支撑在安装区域24的内壁处,这样,可以通过将油分外管50和油分内管52分别与第一壳体21的安装区域24固定,以实现油分组件5的稳定安装;或者,参照图18,可以将油分内管52设于油分外管50的内腔,且将油分内管52上端与油分外管50的上端相连,以将油分内管52与油分外管50一体成型,这样,可以通过将油分外管50固定在第一壳体21的安装区域24内,即可实现油分组件5的便捷安装;又或者,参照图17、图19和图20,可以将油分外管50连接在第一连通通道32的下端,以将油分内管52与第一壳体21一体成型,这样,可以通过将油分外管50安装在第一壳体21的安装区域24内,以实现油分组件5的便捷安装。
在本申请的一些实施例中,安装区域24包括同轴设置的第一孔段211和第二孔段212,油分外管50的轴向两端分别插配于第一孔段211和第二孔段212,第一孔段211与第二孔段212之间具有断开间隔23。
例如,参照图12,可以将安装区域24沿轴向的两端分为第一孔段211和第二孔段212,第一孔段211的轴向和第二孔段212的轴向重合,且在第一孔段211和第二孔段212之间设有断开间隔23,这样,当油分外管50伸至安装区域24后,油分外管50沿轴向的两端可以分别插配于第一孔段211和第二孔段212,以将油分外管50安装在安装区域24内,且油分外管50沿轴向的中部可以从断开间隔23处向外暴露。
可以理解的是,通过将安装区域24分为间隔开的第一孔段211和第二孔段212,使得第一壳体21可以在断开间隔23处设有空腔,利于减小第一壳体21的壁厚,降低第一壳体21的重量,实现了轻量化设计,降低了成本。
在本申请的一些实施例中,第一孔段211的远离第二孔段212的一端与冷媒排出口213连通,第二孔段212的远离第一孔段211的一端贯穿第一壳体21的外表面以形成为安装口214,油分组件5适于通过安装口214沿油分外管50的轴线插入第二孔段212与第一孔段211。
例如,参照图12,可以将安装区域24的上端部分设为第一孔段211,且将安装区域24的下端部分设为第二孔段212,第一孔段211的上端用于和冷媒排出口213连通,第二孔段212的下端贯穿第一壳体21的外表面且形成有安装口214。油分组件5可以沿自身的轴向通过安装口214内伸至安装空间内,使得油分组件5的上端可以与第一孔段211配合,且使得油分组件5的下端可以与第二孔段212配合,以实现油分组件5的安装。
通过上述设置,使得油分组件5可以从冷媒排出口213以外的安装口214装入安装区域24,使得油分组件5的尺寸不受冷媒排出口213的尺寸限制,且安装区域24的设计简单,便于加工,在第一壳体21上占用的空间小,利于实现第一壳体21的灵活设置。
在本申请的一些实施例中,第一壳体21上形成有第一连通通道32,第一连通通道32的一端贯穿第一壳体21的外表面以形成为冷媒排出口213,第一连通通道32的另一端与第一孔段211的远离第二孔段212的一端相连。
例如,参照图11-图13所示,可以设置第一壳体21的轴线沿横向延伸,第一连通通道32位于第一壳体21的顶部且沿竖向延伸,第一连通通道32的上端贯穿第一壳体21的顶部以形成冷媒排出口213,且第一连通通道32的下端用于与第一孔段211的上端连通,使得第一连通通道32可以将出气腔521与第一壳体21的外侧连通。这样,当高压冷媒在进气腔53内完成气液分离后,分离出的冷媒可以流向出气腔521,并从出气腔521内通过第一连通通道32流出至第一壳体21的外侧。
可以理解的是,通过设置第一连通通道32,使得第一孔段211远离第二孔段212的一端与冷媒排出口213间隔开,使得第一连通通道32的中线和截面可以自由设计,且当第一连通通道32的轴线与油分组件5的轴线不重合时,若冷媒排出口213的轴线穿过压缩部件101,油分组件5的轴线可以避开压缩部件101的轴线,以避免油分组件5与压缩部件101产生干涉。
在本申请的一些实施例中,第一孔段211为变截面孔且包括第一子段211a和第二子段211b,第一子段211a的孔径小于第二子段211b的孔径,且第一子段211a位于第二子段211b的远离第二孔段212的一侧,油分外管50的轴向一端插配于第二子段211b,其中,油分内管52的轴向一端插配于第一子段211a;或者第一子段211a的靠近第二孔段212的一端设有延伸段211c,延伸段211c作为油分内管52;或者油分内管52与油分外管50相连。
例如,参照图12,可以沿第一孔段211的轴向将第一孔段211分为第一子段211a和第二子段211b,第一子段211a设于第二子段211b的上端,第一子段211a的孔径设置为小于第二子段211b的孔径,以将第一孔段211设置为变截面孔,第二子段211b的孔径设置为与油分外管50的直径相等,使得油分外管50可以插配于第二子段211b。
其中,可以设置油分内管52的上端与油分外管50沿轴线错开,使得油分内管52的上端可以插配于第一子段211a,这样,可以通过将油分外管50和油分内管52分别插配至与第二子段211b和第一子段211a,以实现油分组件5的稳定安装;或者,参照图17、图19和图20,可以在第一子段211a的下端设有延伸段211c,延伸段211c设为油分内管52,延伸段211c伸至第二子段211b内且与第二子段211b的内壁间隔开设置,这样,当油分外管50插配于第二子段211b时,延伸段211c可以伸至油分外管50的内腔中,以实现油分组件5的便捷安装;又或者,参照图18,可以将油分内管52设于油分外管50的内腔,且将油分内管52的上端与油分外管50的上端相连,以将油分内管52与油分外管50一体成型,这样,可以通过将油分外管50插配于第二子段211b,以实现油分组件5的便捷安装。
在本申请的一些实施例中,第一壳体21上形成有第二连通通道34,油分入口31形成在第一孔段211上,且通过第二连通通道34连通至电动压缩机100的压缩部件101的排气口11。
例如,参照图11-图13所示,可以在第一壳体21上形成有第二连通通道34,第二连通通道34沿横向延伸布置,第二连通通道34的一端与第一孔段211相连,且在第一孔段211上的切向形成有油分入口31,第二连通通道34的另一端用于与电动压缩机100的压缩部件101的排气口11连通,使得第一孔段211可以和压缩部件101的排气孔连通。这样,当电动压缩机100得电正常工作时,当压缩部件101吸入低压冷媒且在压缩后形成高压冷媒,高压冷媒可以从压缩部件101的排气口11流至第二连通通道34,并沿第二连通通道34流入进气腔53内,以在进气腔53内进行气液分离。
可以理解的是,通过设置第二连通通道34将进气腔53与压缩部件101的排气口11连通,使得流出压缩部件101的高压冷媒可以流入进气腔53内,利于提高高压冷媒的流动稳定性,提高了冷媒的气液分离效果。
在本申请的一些实施例中,如图14所示,第一壳体21的内腔形成为与电动压缩机100的压缩部件101的排气口11连通的容纳腔215,结合图15-图20,油分入口31形成在第一孔段211上或者油分外管50上,且与容纳腔215连通。例如容纳腔215可以为高压腔。
例如,参照图14,可以将第一壳体21的内腔形成为容纳腔215,容纳腔215与电动压缩机100的压缩部件101的排气口11连通,油分入口31与容纳腔215连通,容纳腔215还可以作为润滑油的储油池,容纳腔215通过回油通道与压缩部件101连通。这样,当电动压缩机100得电正常工作时,压缩部件101可以吸入低压冷媒且在压缩后形成高压冷媒,高压冷媒可以从压缩部件101的排气口11流入容纳腔215内,部分润滑油分离至容纳腔215内,且高压冷媒可以从油分入口31流入进气腔53内以进行气液分离,分离出的冷媒可以流经出气腔521以从冷媒排出口213排出至第一壳体21的外侧,且分离出的润滑油可以从第一回油孔41流入容纳腔215内,且容纳腔215内的润滑油可以从回油通道流入压缩部件101。
例如,参照图15,可以在第一壳体21的第一孔段211上设有油分入口31,油分入口31沿油分外管50的切向与油分内管52在轴向上位置相对;或者,可以在油分外管50的切向上设有油分入口31,油分入口31与油分内管52在轴向上位置相对。由此,实现了油分入口31的灵活布置,利于满足不同的实际需求。
可以理解的是,通过设置容纳腔215分别与油分入口31和压缩部件101的排气口11连通,使得流出排气口11的高压冷媒可以在流经容纳腔215后流入进气腔53,利于增大高压冷媒的行程,且利于降低高压冷媒在进气腔53内的波动,提高气液分离效果。
下面,描述根据本申请一些具体实施例的用于电动压缩机的壳体部件102。
在一些实施例中,如图11-图13所示,壳体部件102包括第一壳体21和油分组件5,第一壳体21的轴线沿横向延伸,第一壳体21内形成有安装区域24,安装区域24分为在上下方向上间隔开的第一孔段211和第二孔段212,第一孔段211和第二孔段212同轴设置,且第一孔段211设有第一子段211a和第二子段211b,第一子段211a的孔径小于第二子段211b的孔径以将第一孔段211构造为变截面孔。第二孔段212的下端朝外敞开以形成有安装口214,油分组件5可以沿自身轴线(即油分外管50的轴线)通过安装口214安装至安装区域24内,且在油分组件5安装完成后,可以在安装口214内安装有堵塞60以密封安装口214。
油分组件5包括油分外管50和油分内管52,油分外管50构造为圆管状结构,油分外管50的上端用于插配于第一孔段211的第二子段211b内,且油分外管50的下端用于插配于第二孔段212内,以将油分外管50固定在安装区域24内。油分内管52构造为直径较小的圆管状结构,油分内管52的上端插配于第一孔段211的第一子段211a内,油分内管52的下端伸至油分外管50的内腔中,油分内管52的外壁可以和油分外管50的内壁间隔开设置,以在油分内管52与油分外管50之间形成有环状的进气腔53。油分内管52的内腔形成有与进气腔53连通的出气腔521,且油分外管50的下端设有与回油通道连通的第一回油孔41。第一壳体21设有第一连通通道32,第一连通通道32位于第一壳体21的顶部且沿竖向延伸,第一连通通道32的上端贯穿第一壳体21的顶部以形成冷媒排出口213,第一连通通道32的下端与出气腔521连通。
其中,第一壳体21还设有第二连通通道34,第二连通通道34沿横向延伸布置,第二连通通道34的一端与第二子段211b的内腔连通,以在第二子段211b上形成有沿油分外管50切向延伸的油分入口31,且第二连通通道34的另一端用于和压缩部件101的排气口11连通。
在具体的工作过程中,当电动压缩机100得电正常运行时,低压冷媒可以被吸入,并经过压缩部件101的压缩形成高压冷媒,压缩部件101适于通过排气口11向第二连通通道34内通入高压冷媒,高压冷媒沿第二连通通道34流动且通过油分入口31排入进气腔53内,流入进气腔53的高压冷媒可以在进气腔53内围绕油分内管52运动以实现气液分离,分离出的气态冷媒流经出气腔521、第一连通通道32以从冷媒排出口213排出到第一壳体21外,分离出的润滑油可以沿着油分外管50的内壁流向第一回油孔41,以从回油通道流入压缩部件101。
在一些实施例中,如图14和图15所示,本实施例与上述图11-图13所示的实施例不同之处包括:第一壳体21的内腔形成为容纳腔215,容纳腔215与电动压缩机100的压缩部件101的排气口11连通,第一壳体21的第一孔段211上设有油分入口31,油分入口31与容纳腔215连通,容纳腔215还可以作为润滑油的储油池,容纳腔215通过回油通道与压缩部件101的内腔连通。这样,当电动压缩机100得电正常工作时,压缩部件101可以吸入低压冷媒且在压缩后形成高压冷媒,高压冷媒可以从压缩部件101的排气口11流入容纳腔215内,部分润滑油分离至容纳腔215内,且高压冷媒可以从油分入口31流入进气腔53内以进行气液分离,分离出的冷媒可以流经出气腔521以从冷媒排出口213排出至第一壳体21的外侧,且分离出的润滑油可以从第一回油孔41流入容纳腔215内,且容纳腔215内的润滑油可以从回油通道流入压缩部件101。
在一些实施例中,如图16所示,本实施例与上述图11-图13所示的实施例不同之处包括:第一壳体21的内腔形成为容纳腔215,容纳腔215与电动压缩机100的压缩部件101的排气口11连通,油分外管50在切向上设有油分入口31,油分入口31与容纳腔215连通,容纳腔215还可以作为润滑油的储油池,容纳腔215通过回油通道与压缩部件101连通。这样,当电动压缩机100得电正常工作时,压缩部件101可以吸入低压冷媒且在压缩后形成高压冷媒,高压冷媒可以从压缩部件101的排气口11流入容纳腔215内,部分润滑油分离至容纳腔215内,且高压冷媒可以从油分入口31流入进气腔53内以进行气液分离,分离出的冷媒可以流经出气腔521以从冷媒排出口213排出至第一壳体21的外侧,且分离出的润滑油可以从第一回油孔41流入容纳腔215内,且容纳腔215内的润滑油可以从回油通道流入压缩部件101。
在一些实施例中,如图17所示,本实施例与上述图11-图13所示的实施例不同之处包括:第一子段211a的下端设有延伸段211c,延伸段211c伸至第二子段211b内且与第二子段211b的内壁间隔开设置,延伸段211c设为油分内管52,当油分外管50插配于第二子段211b时,延伸段211c伸至油分外管50的内腔中以形成进气腔53。第一壳体21的内腔形成为容纳腔215,容纳腔215与电动压缩机100的压缩部件101的排气口11连通,第一壳体21的第一孔段211上设有油分入口31,油分入口31与油分内管52在轴向上位置相对且与容纳腔215连通,容纳腔215还可以作为润滑油的储油池,容纳腔215通过回油通道与压缩部件101连通。
在一些实施例中,如图18所示,本实施例与上述图11-图13所示的实施例不同之处包括:油分内管52设于油分外管50的内腔,且将油分内管52的上端与油分外管50的上端相连,以将油分内管52与油分外管50一体成型,通过将油分外管50插配于第二子段211b,即可实现油分组件5的安装。
在一些实施例中,如图19所示,本实施例与上述图11-图13所示的实施例不同之处包括:第二子段211b的下端朝外敞开以形成有安装口214,油分组件5可以沿自身轴线通过安装口214安装至安装区域24内,且在油分组件5安装完成后,可以在安装口214内安装有压力保护装置80,压力保护装置80包括装配相连的泄压安全阀82和堵头81,堵头81卡接固定在安装口214处,堵头81设有将安装区域24与第一壳体21的外侧连通的气流通道,泄压安全阀82适于安装在堵头81的气流通道内且适于在安装区域24的压强过大时连通。
第一子段211a的下端设有延伸段211c,延伸段211c伸至第二子段211b内且与第二子段211b的内壁间隔开设置,延伸段211c设为油分内管52,当油分外管50插配于第二子段211b时,延伸段211c伸至油分外管50的内腔中以形成进气腔53。第一壳体21的内腔形成为容纳腔215,容纳腔215与电动压缩机100的压缩部件101的排气口11连通,第一壳体21的第一孔段211上设有油分入口31,油分入口31与油分内管52在轴向上位置相对且与容纳腔215连通,容纳腔215还可以作为润滑油的储油池,容纳腔215通过回油通道与压缩部件101连通。
在一些实施例中,如图20所示,本实施例与上述图11-图13所示的实施例不同之处包括:第二子段211b的下端朝外敞开以形成有安装口214,油分组件5可以沿自身轴线通过安装口214安装至安装区域24内,且在油分组件5安装完成后,可以在安装口214内安装有压力保护装置80,压力保护装置80包括一体成型的泄压安全阀82和堵头81,泄压安全阀82适于通过堵头81安装在安装口214内且适于在安装区域24的压强过大时连通。
第一子段211a的下端设有延伸段211c,延伸段211c伸至第二子段211b内且与第二子段211b的内壁间隔开设置,延伸段211c设为油分内管52,当油分外管50插配于第二子段211b时,延伸段211c伸至油分外管50的内腔中以形成进气腔53。第一壳体21的内腔形成为容纳腔215,容纳腔215与电动压缩机100的压缩部件101的排气口11连通,第一壳体21的第一孔段211上设有油分入口31,油分入口31与油分内管52在轴向上的位置相对且与容纳腔215连通,容纳腔215还可以作为润滑油的储油池,容纳腔215通过回油通道与压缩部件101连通。
本申请还提出了一种电动压缩机100。
参照图11,根据本申请实施例的电动压缩机100,包括:壳体部件102、压缩部件101和电机部件。壳体部件102包括上述任一实施例的用于电动压缩机的壳体部件102;压缩部件101设于壳体部件102内且用于压缩冷媒,经压缩部件101压缩的冷媒适于通过油分组件5从冷媒排出口213排出;电机部件设于壳体部件102内且用于驱动压缩部件101执行压缩工作。
例如,电动压缩机100设有压缩部件101、壳体部件102和电机部件。参照图12所示的实施例,壳体部件102包括第一壳体21和油分组件5,第一壳体21的轴线沿横向(即水平方向)延伸,第一壳体21内形成有安装区域24,油分组件5沿自身的轴向伸至安装区域24内,第一壳体21的外表面形成有冷媒排出口213,冷媒排出口213用于将安装区域24与第一壳体21的外侧连通。
油分组件5包括油分外管50和油分内管52,油分外管50构造为管状结构,油分外管50的外径与安装区域24的直径相等,油分外管50的外壁可以支撑在安装区域24的内壁处以固定在安装区域24内。油分内管52适于伸至油分外管50的内腔,油分内管52构造为直径较小的管状结构,油分内管52的外壁可以和油分外管50的内壁间隔开设置,以在油分内管52与油分外管50之间形成有环状的进气腔53。
压缩部件101适于安装在第一壳体21的内腔,压缩部件101用于吸收低压冷媒并对低压冷媒进行压缩,压缩部件101设有排气口11,压缩后的高压冷媒可以从排气口11排出。其中,参照图12,可以在第一壳体21上设有油分入口31;或者,参照图18,可以在油分外管50上设有油分入口31;又或者,可以在第一壳体21和油分外管50上均设有油分入口31,第一壳体21的油分入口31和油分外管50的油分入口31正对连通。油分入口31沿油分外管50的切向延伸,油分入口31用于将进气腔53与压缩部件101的排气口11连通。同时,可以在油分内管52的内腔形成有出气腔521,出气腔521的上端用于与冷媒排出口213连通,且出气腔521的下端用于与进气腔53连通,且在油分外管50的下端形成有第一回油孔41,第一回油孔41用于将进气腔53与压缩部件101的回油通道连通。同时,可以将电机部件安装在第一壳体21的内腔且与压缩部件101间隔开设置,电机部件用于驱动压缩部件101对吸入的冷媒进行压缩。
在具体的工作过程中,当电动压缩机100得电正常运行时,压缩部件101可以从第一壳体21的外侧吸入低压冷媒,电机部件对压缩部件101施加扭矩,使得压缩部件101可以对低压冷媒进行压缩以形成高压冷媒。电动压缩机100的压缩部件101适于通过排气口11向外排出高压冷媒,使得高压冷媒可以通过油分入口31流入进气腔53内,流入进气腔53的高压冷媒可以在进气腔53内围绕油分内管52运动以实现气液分离,分离出的气态冷媒通过出气腔521从冷媒排出口213排出到第一壳体21外,分离出的润滑油可以沿着油分外管50的内壁流向第一回油孔41,以从回油通道流入压缩部件101内。
根据本申请实施例的电动压缩机100,通过在第一壳体21上设有安装区域24,安装区域24内安装有油分组件5,且在油分组件5内形成有进气腔53,使得高压冷媒可以通过油分入口31流入油分组件5的进气腔53内并在进气腔53内进行气液分离,无须在第一壳体21上预留进气腔53的加工空间,利于减小第一壳体21的厚度,使得第一壳体21可以灵活设计,利于实现电动压缩机100的灵活设计。
本申请又提出了一种空调系统1001。
参照图21所示,根据本申请实施例的空调系统1001,包括上述任一实施例的电动压缩机100。通过在第一壳体21上设有安装区域24,安装区域24内安装有油分组件5,且在油分组件5内形成有进气腔53,使得高压冷媒可以通过油分入口31流入油分组件5的进气腔53内并在进气腔53内进行气液分离,无须在第一壳体21上预留进气腔53的加工空间,利于减小第一壳体21的厚度,使得第一壳体21可以灵活设计,利于实现电动压缩机100的灵活设计,提高了空调系统1001的布局合理性。
本申请又提出了一种车辆1000。
参照图21所示,根据本申请实施例的车辆1000,包括:车本体和搭载于车本体的空调系统1001,空调系统1001为上述任一实施例的空调系统1001。通过在第一壳体21上设有安装区域24,安装区域24内安装有油分组件5,且在油分组件5内形成有进气腔53,使得高压冷媒可以通过油分入口31流入油分组件5的进气腔53内并在进气腔53内进行气液分离,无须在第一壳体21上预留进气腔53的加工空间,利于减小第一壳体21的厚度,使得第一壳体21可以灵活设计,利于实现电动压缩机100的灵活设计,提高了空调系统1001的布局合理性,提高了车辆1000的整体性能。
需要说明的是,在本申请中,车辆1000的具体类型不限,例如,该车辆1000可以是传统的燃油车,也可以是新能源汽车,所说的新能源汽车包括但不限于纯电动汽车、增程式电动汽车、混合动力汽车、燃料电池电动汽车、氢发动机汽车等。
在一些实施例中,新能源车辆可以是以电机作为主驱动力的纯电动车辆,在另一些实施例中,新能源车辆还可以是以内燃机和电机同时作为主驱动力的混合动力车辆。关于上述实施例中提及的为新能源车辆提供驱动动力的内燃机和电机,其中内燃机可以采用汽油、柴油、氢气等作为燃料,而为电机提供电能的方式可以采用动力电池、氢燃料电池等,这里不作特殊限定。需要说明,这里仅仅是对新能源车辆等结构作出的示例性说明,并非是限定本申请的保护范围。
在本申请的描述中,需要理解的是,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本申请和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请的限制。
此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中,“多个”的含义是两个以上,除非另有明确具体的限定。
在本申请中,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或成一体;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中,除非另有明确的规定和限定,第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触,或第一和第二特征通过中间媒介间接接触。而且,第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方,或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方,或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外,在不相互矛盾的情况下,本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本申请的实施例,可以理解的是,上述实施例是示例性的,不能理解为对本申请的限制,本领域的普通技术人员在本申请的范围内可以对上述实施例进行变化、修改、替换和变型。
Claims (21)
- 一种电动压缩机,其中,包括:壳体部件;压缩部件,所述压缩部件设于所述壳体部件内且用于压缩冷媒;和电机部件,所述电机部件设于所述壳体部件内且用于驱动所述压缩部件执行压缩工作;其中,所述壳体部件包括第一壳体,所述压缩部件的至少部分收纳于所述第一壳体内,所述第一壳体上形成有冷媒排出口,所述第一壳体设有油分腔,所述油分腔的油分入口与所述压缩部件的排气口连通,所述油分腔的油分出口与所述冷媒排出口连通。
- 根据权利要求1所述的电动压缩机,其中,所述第一壳体上装配有油分外管,所述油分外管的内腔形成所述油分腔的至少部分。
- 根据权利要求2所述的电动压缩机,其中,所述油分外管的下端具有渐缩管,且所述渐缩管的下端口形成为第一回油孔,所述第一回油孔的孔径小于所述油分腔的内径。
- 根据权利要求2或3所述的电动压缩机,其中,所述第一壳体的外表面上具有与所述冷媒排出口间隔设置的安装口,所述油分外管适于沿自身轴线通过所述安装口装入所述第一壳体。
- 根据权利要求4所述的电动压缩机,其中,所述壳体上具有同轴设置的第一孔段和第二孔段,所述油分外管的轴向两端分别插配于所述第一孔段和所述第二孔段,所述第一孔段与所述第二孔段之间具有断开间隔,所述第二孔段的远离所述第一孔段的一端贯穿所述第一壳体的外表面以形成为所述安装口。
- 根据权利要求5所述的电动压缩机,其中,所述第一壳体上形成有第一连通通道,所述第一连通通道的一端贯穿所述第一壳体的外表面以形成为所述冷媒排出口,所述第一连通通道的另一端与所述第一孔段的远离所述第二孔段的一端相连。
- 根据权利要求5或6所述的电动压缩机,其中,所述第一壳体上形成有第二连通通道,所述油分入口形成在所述第一孔段上,且通过所述第二连通通道连通至所述排气口。
- 根据权利要求2-7中任一项所述的电动压缩机,其中,还包括油分内管,所述油分内管位于所述油分外管内,所述油分外管的内壁与所述油分内管的外壁之间形成进气腔,所述第一壳体和/或所述油分外管上具有所述油分入口,所述油分入口沿所述油分外管的切向延伸且与所述进气腔连通,所述油分内管的内腔形成为出气腔,所述出气腔与所述冷媒排出口和所述进气腔分别连通。
- 根据权利要求8所述的电动压缩机,其中,所述油分内管装配于所述第一壳体、或者与所述油分外管相连、或者与所述第一壳体为一体件。
- 根据权利要求1所述的电动压缩机,其中,所述第一壳体自身限定出所述油分腔。
- 根据权利要求10所述的电动压缩机,其中,所述油分腔内的下部设有回油装置,所述回油装置上具有第一回油孔,所述第一回油孔的孔径小于所述油分腔的内径。
- 根据权利要求3或11所述的电动压缩机,其中,所述油分腔的腔壁上具有第二回油孔,所述第二回油孔与所述第一回油孔连通。
- 根据权利要求3或11所述的电动压缩机,其中,所述油分腔的上端与所述第一回油孔之间的轴向间距为L1,所述油分入口与所述第一回油孔之间的轴向间距为L2,所述油分腔内设有油分内管,所述油分内管的内腔形成为与所述油分出口连通的出气腔,所述油分内管与所述第一回油孔之间的轴向间距为L3,其中,0.2L1<L3<L2。
- 根据权利要求1所述的电动压缩机,其中,所述油分腔的过流面积为S1,所述油分腔的下部设有第一回油孔,所述第一回油孔的过流面积为S3,所述油分腔内设有油分内管,所述油分内管的内腔形成为与所述油分出口连通的出气腔,所述出气腔的过流面积为S2,满足以下三个条件中的至少一个,条件一为0.025≤S2/S1≤0.45,条件二为0.015≤S3/S1≤0.4,条件三为0.15≤S3/S2≤0.65。
- 根据权利要求1-14中任一项所述的电动压缩机,其中,所述油分入口沿所述油分腔的切向延伸,以过所述油分腔的轴线且垂直于所述油分入口的轴线的平面为投影面,所述油分入口在所述投影面上的正投影的面积为A,所述正投影的位于所述油分腔轴线的一侧的面积为B,其中,B/A大于等于80%。
- 根据权利要求1-15中任一项所述的电动压缩机,其中,所述油分出口设于所述油分腔的轴向一侧,所述油分腔的轴线延伸方向上的朝向所述油分出口的方向为正延伸方向,所述油分入口的轴线延伸方向与所述油分腔的轴线正延伸方向相交夹角θ,其中,45°≤θ≤90°。
- 根据权利要求1所述的电动压缩机,其中,所述第一壳体的壳壁内形成有第一连通通道,所述油分出口通过所述第一连通通道与所述冷媒排出口连通。
- 根据权利要求17所述的电动压缩机,其中,所述第一连通通道的轴线为直线,且所述第一连通通道的轴向长度小于所述油分腔的轴向长度,所述第一连通通道的轴线与所述油分腔的轴线重合或相交。
- 根据权利要求18所述的电动压缩机,其中,所述第一壳体的轴线沿横向延伸,所述第一连通通道位于所述第一壳体的顶部且沿竖向延伸,所述第一连通通道的上端贯穿所述第一壳体的顶部以形成所述冷媒排出口,所述油分腔自所述第一连通通道的下端向下倾斜延伸。
- 一种空调系统,其中,包括根据权利要求1-19中任一项所述的电动压缩机。
- 一种车辆,其中,包括:车本体和搭载于所述车本体的空调系统,所述空调系统为根据权利要求20所述的空调系统。
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
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CN202221588899.X | 2022-06-22 | ||
CN202221588899.XU CN218325285U (zh) | 2022-06-22 | 2022-06-22 | 壳体部件、电动压缩机、空调系统和车辆 |
CN202221588912.1 | 2022-06-22 | ||
CN202210714054.9 | 2022-06-22 | ||
CN202221588912.1U CN218325274U (zh) | 2022-06-22 | 2022-06-22 | 电动压缩机、空调系统和车辆 |
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CN202210714055.3A CN117307490A (zh) | 2022-06-22 | 2022-06-22 | 壳体部件、电动压缩机、空调系统和车辆 |
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WO2022001019A1 (zh) * | 2020-06-30 | 2022-01-06 | 广东美芝精密制造有限公司 | 压缩机和制冷装置 |
CN218325285U (zh) * | 2022-06-22 | 2023-01-17 | 安徽威灵汽车部件有限公司 | 壳体部件、电动压缩机、空调系统和车辆 |
CN218325274U (zh) * | 2022-06-22 | 2023-01-17 | 安徽威灵汽车部件有限公司 | 电动压缩机、空调系统和车辆 |
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WO2022001019A1 (zh) * | 2020-06-30 | 2022-01-06 | 广东美芝精密制造有限公司 | 压缩机和制冷装置 |
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