Oil circuit structure and scroll compressor
阅读说明:本技术 油路结构及涡旋压缩机 (Oil circuit structure and scroll compressor ) 是由 胡余生 魏会军 单彩侠 方琪 赵豪川 于 2019-10-24 设计创作,主要内容包括:本发明提供一种油路结构及涡旋压缩机,包括:动涡旋盘、支架结构,动涡旋盘与支架结构之间设有背压腔;电机组件,电机组件所在腔室内设有储油区;支架结构上设有第一引油通道,第一引油通道连通储油区与背压腔,第一引油通道用于将储油区内的油液引入背压腔。本发明的油路结构及涡旋压缩机,动静涡盘及轴承件均可实现油膜润滑,降低摩擦功耗,提高压缩机可靠性;引油通道结构简单,无需高低压节流,不存在高低压泄漏的风险。油路通道与气路相对分离,能够降低压缩机排油率,提高系统换热效果;形成循环油路,能更好的促进压缩机内润滑油的循环利用,简化零件加工及设计,工艺简单,安全可靠。(The invention provides an oil circuit structure and a scroll compressor, comprising: the back pressure cavity is arranged between the movable scroll plate and the support structure; the motor assembly is arranged in the cavity and is provided with an oil storage area; the support structure is provided with a first oil guide channel, the first oil guide channel is communicated with the oil storage area and the back pressure cavity, and the first oil guide channel is used for guiding oil in the oil storage area into the back pressure cavity. According to the oil circuit structure and the scroll compressor, oil film lubrication can be realized on the dynamic and static scrolls and the bearing pieces, so that the friction power consumption is reduced, and the reliability of the compressor is improved; the oil guide channel is simple in structure, high-pressure and low-pressure throttling is not needed, and the risk of high-pressure and low-pressure leakage is avoided. The oil path channel and the gas path are relatively separated, so that the oil discharge rate of the compressor can be reduced, and the heat exchange effect of the system is improved; the circulating oil way is formed, the recycling of lubricating oil in the compressor can be better promoted, the part processing and design are simplified, the process is simple, and the safety and the reliability are realized.)
1. An oil passage structure, characterized by comprising:
the vortex generator comprises a movable vortex disc (1) and a support structure (2), wherein a back pressure cavity (3) is arranged between the movable vortex disc (1) and the support structure (2);
the motor assembly (4), the cavity where the motor assembly (4) is located is provided with an oil storage area (5);
be equipped with on supporting structure (2) first oil passageway (6) of drawing, first oil passageway (6) intercommunication of drawing oil storage district (5) with backpressure chamber (3), first oil passageway (6) of drawing be used for with fluid in oil storage district (5) is introduced backpressure chamber (3).
2. The oil circuit structure according to claim 1, characterized in that the oil circuit structure further comprises a crankshaft member (7), the crankshaft member (7) is rotatably connected with the movable scroll (1), a movable disc bearing (8) is arranged at the joint of the crankshaft member (7) and the movable scroll (1), the movable disc bearing (8) is installed in a first bearing chamber (9), the first bearing chamber (9) is communicated with the back pressure chamber (3), and oil in the back pressure chamber (3) can lubricate the movable disc bearing (8).
3. The oil circuit arrangement according to claim 2, characterized in that the first oil guide channel (6) opens in the radial direction of the carrier structure (2).
4. The oil circuit arrangement according to claim 2, characterized in that the first oil lead-through channel (6) comprises an oil suction pipe (10), the oil suction pipe (10) being connected to a port of the first oil lead-through channel (6) at the oil reservoir area (5), the oil suction pipe (10) extending to the ground oil of the oil reservoir area (5).
5. The oil circuit structure according to claim 1, characterized in that the oil circuit structure further comprises a crankshaft member (7), the crankshaft member (7) is rotatably connected with the support structure (2), a support bearing (11) is arranged at the joint of the crankshaft member (7) and the support structure (2), the support bearing (11) is installed in a second bearing chamber (12), the second bearing chamber (12) is communicated with the back pressure chamber (3), and oil in the back pressure chamber (3) can lubricate the support bearing (11).
6. The oil circuit structure according to claim 5, characterized in that a second oil guiding channel (13) is formed in the support structure (2), and the second oil guiding channel (13) is communicated with the second bearing chamber (12) and the back pressure cavity (3).
7. The oil circuit arrangement according to claim 6, characterized in that the second oil guide channel (13) opens in the axial direction of the carrier structure (2).
8. The oil circuit structure according to any one of claims 2 to 7, wherein the other end of the crankshaft (7) is connected to a bottom shell member (14) of the compressor, a third bearing chamber (15) is arranged on the bottom shell member (14), a bottom shell bearing (16) is installed in the third bearing chamber (15), an eccentric hole (17) is formed in the crankshaft (7), the eccentric hole (17) is communicated with the back pressure chamber (3) and the third bearing chamber (15), and oil in the back pressure chamber (3) can enter the third bearing chamber (15) through the eccentric hole (17) to lubricate the bottom shell bearing (16).
9. The oil circuit structure according to claim 8, characterized in that at least one oil guide piece (18) is installed in the eccentric hole (17).
10. The oil circuit arrangement according to claim 9, characterized in that the oil guide vane (18) is provided at an end of the eccentric bore (17) close to the back pressure chamber (3) and/or that the oil guide vane (18) is provided at an end of the eccentric bore (17) close to the third bearing chamber (15).
11. The oil circuit structure according to claim 8, characterized in that an oil pump structure (19) is provided in the third bearing chamber (15), the oil pump structure (19) is communicated with the eccentric hole (17), and the oil pump structure (19) can suck oil in the back pressure chamber (3) to the third bearing chamber (15) through the eccentric hole (17).
12. The oil circuit structure according to any one of claims 9 to 11, characterized in that the third bearing chamber (15) communicates with the oil reservoir region (5) through a fourth oil introducing passage (24), the fourth oil introducing passage (24) being provided in the bottom case member (14).
13. The oil circuit structure according to any one of claims 1 to 7 and 9 to 11, further comprising a sealing device for sealing oil in the orbiting scroll (1).
14. The oil circuit structure according to claim 13, wherein the sealing device is arranged on a contact surface between a fixed scroll (22) and a cover (23) of the compressor, and the sealing device comprises a refrigerant seal (20) and an oil seal (21).
15. A scroll compressor characterized by employing the oil passage structure according to any one of claims 1 to 14.
Technical Field
The invention belongs to the technical field of compressors, and particularly relates to an oil circuit structure and a scroll compressor.
Background
The electric vortex compressor for automobile air conditioner is horizontal structure, and the motor, the shaft system and the pump body inside the compressor are installed transversely. The disadvantage of the horizontal compressor is that there is no stable lubricant oil sump inside the compressor, compared to the conventional vertical compressor. The recycling of the refrigeration oil and the lubrication difficulty of the bearing are great.
As shown in FIG. 1, in the prior art oil path structure, an oil guiding passage structure 4 ' is respectively formed on a movable disk 1 ', a stationary disk 2 ' and a bracket 3 ', a back pressure cavity 5 ' is communicated with an exhaust high-pressure oil area 6 ', a follow-up disk 1 ' runs for a circle, the oil guiding passage structure 4 ' is conducted once, and high-pressure oil is intermittently guided to the back pressure cavity 5 ' to lubricate a bearing. In the scheme, the high-pressure oil is led to the back pressure cavity by utilizing the pressure difference to lubricate the bearings on the bracket 3 'and the movable disc 1'.
However, this solution requires a certain amount of lubricant oil to be stored in the high-pressure region, which causes a problem of a large oil discharge rate of the compressor. On the other hand, impurities generated by abrasion of the pump body in the high-pressure oil area can enter the back pressure cavity 5 'through the oil guide channel structure 4', and the impurities can block the oil guide channel, so that lubrication of the support 3 ', the movable disc 1' and the like is influenced, and abnormal abrasion is generated.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is that the oil way structure causes large oil discharge rate of the compressor, and impurities enter to cause damage to the bearing, so that the oil way structure and the scroll compressor are provided.
In order to solve the above problems, the present invention provides an oil path structure including:
the back pressure cavity is arranged between the movable scroll plate and the support structure;
the motor assembly is arranged in the cavity and is provided with an oil storage area;
the support structure is provided with a first oil guide channel, the first oil guide channel is communicated with the oil storage area and the back pressure cavity, and the first oil guide channel is used for guiding oil in the oil storage area into the back pressure cavity.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Preferably, oil circuit structure still includes bent axle spare, and bent axle spare rotates with to move the vortex dish and is connected, and bent axle spare is equipped with movable disk bearing with moving vortex dish junction, and movable disk bearing installs in first bearing chamber, and first bearing chamber communicates with each other with the backpressure chamber, and fluid in the backpressure intracavity can lubricate movable disk bearing.
Preferably, the first oil guide channel is opened along the radial direction of the support structure.
Preferably, the first oil guiding channel comprises an oil suction pipe, the oil suction pipe is connected to a port of the first oil guiding channel, which is located in the oil storage area, and the oil suction pipe extends to the bottom oil in the oil storage area.
Preferably, the oil circuit structure still includes bent axle spare, and bent axle spare rotates with supporting structure and is connected, and bent axle spare and supporting structure junction are equipped with the support bearing, and the support bearing is installed at the second bearing chamber, and the second bearing chamber communicates with each other with the backpressure chamber, and fluid in the backpressure intracavity can lubricate the support bearing.
Preferably, the bracket structure is provided with a second oil guide channel, and the second oil guide channel is communicated with the second bearing chamber and the back pressure cavity.
Preferably, the second oil guide channel is opened along the axial direction of the support structure.
Preferably, the other end of bent axle spare is connected to the drain pan spare of compressor, is equipped with third bearing chamber on the drain pan spare, and the indoor drain pan bearing that installs of third bearing is equipped with the eccentric orfice in the bent axle spare, and eccentric orfice intercommunication backpressure chamber and third bearing chamber, the fluid accessible eccentric orfice in the backpressure intracavity get into third bearing chamber, lubricate the drain pan bearing.
Preferably, at least one oil guide plate is installed in the eccentric hole.
Preferably, an oil guide plate is arranged at one end of the eccentric hole close to the back pressure cavity, and/or an oil guide plate is arranged at one end of the eccentric hole close to the third bearing chamber.
Preferably, the third bearing chamber is internally provided with an oil pump structure, the oil pump structure is communicated with the eccentric hole, and oil in the backpressure cavity can be sucked into the third bearing chamber through the eccentric hole of the oil pump structure.
Preferably, the third bearing chamber communicates with the oil reservoir region through a fourth oil introduction passage provided in the bottom case member.
Preferably, the oil path structure further comprises a sealing device for sealing oil in the orbiting scroll.
Preferably, the sealing device is arranged on a contact surface of the fixed scroll plate and the cover of the compressor, and the sealing device comprises a refrigerant sealing element and an oil sealing element.
The scroll compressor adopts the oil circuit structure.
The oil path structure and the scroll compressor provided by the invention at least have the following beneficial effects:
according to the oil circuit structure and the scroll compressor, oil film lubrication can be realized on the dynamic and static scrolls and the bearing pieces, so that the friction power consumption is reduced, and the reliability of the compressor is improved; the oil guide channel is simple in structure, high-pressure and low-pressure throttling is not needed, and the risk of high-pressure and low-pressure leakage is avoided. The oil path channel and the gas path are relatively separated, so that the oil discharge rate of the compressor can be reduced, and the heat exchange effect of the system is improved; the circulating oil way is formed, the recycling of lubricating oil in the compressor can be better promoted, the part processing and design are simplified, the process is simple, and the safety and the reliability are realized.
Drawings
FIG. 1 is a schematic diagram of a prior art oil circuit configuration;
FIG. 2 is a schematic diagram of an oil path structure according to an embodiment of the present invention;
FIG. 3 is a schematic view of a stent structure according to an embodiment of the present invention;
FIG. 4 is a schematic view of an oil suction pipe according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an oil pump according to an embodiment of the present invention.
The reference numerals are represented as:
1', a movable disc; 2', a static disc; 3', a bracket; 4', an oil guide channel structure; 5', a back pressure chamber; 6' and a high-pressure oil area.
1. A movable scroll; 2. a scaffold structure; 3. a back pressure chamber; 4. a motor assembly; 5. an oil storage region; 6. a first oil guide channel; 7. a crankshaft piece; 8. a movable disc bearing; 9. a first bearing chamber; 10. an oil suction pipe; 11. a bracket bearing; 12. a second bearing chamber; 13. a second oil guide channel; 14. a bottom housing member; 15. a third bearing chamber; 16. a bottom shell bearing; 17. an eccentric hole; 18. an oil guide sheet; 19. an oil pump structure; 20. a refrigerant sealing member; 21. an oil seal; 22. a fixed scroll; 23. a machine cover; 24. and a fourth oil guide channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, an oil path structure according to an embodiment of the present invention includes: the device comprises a movable scroll 1 and a
The oil circuit structure of this embodiment changes the technical scheme that the oil was drawn from high-pressure oil district to the back pressure chamber among the original oil circuit structure, and with the
The interior of the compressor can be set into three different pressure areas through different sealing parts, the cavity in the
In this embodiment, oil circuit structure still includes
According to the horizontal compressor, main lubrication parts mainly comprise a movable scroll and a fixed scroll and a bearing piece, oil in an
In this embodiment, in the horizontal scroll compressor, the fluid in the
In this embodiment, in order to improve the oil absorption effect of the first
In this embodiment, the oil circuit structure still includes
In this embodiment, the other end of the
Thus, the oil path structure of the present embodiment can form a complete circulation oil path: oil in the
In this embodiment, the installation position of the
In this embodiment, for the circulation efficiency who improves fluid circulation circuit, be equipped with
In this embodiment, the
In this embodiment, the oil path structure further includes a sealing device, and the sealing device is used for sealing oil in the movable scroll 1. Sealing device sets up on the contact surface of compressor fixed scroll 22 and
According to the oil circuit structure, the dynamic and static scrolls and the bearing piece can realize oil film lubrication, so that the friction power consumption is reduced, and the reliability of the compressor is improved; the oil guide channel is simple in structure, high-pressure and low-pressure throttling is not needed, and the risk of high-pressure and low-pressure leakage is avoided. The oil path channel and the gas path are relatively separated, so that the oil discharge rate of the compressor can be reduced, and the heat exchange effect of the system is improved; the circulating oil way is formed, the recycling of lubricating oil in the compressor can be better promoted, the part processing and design are simplified, the process is simple, and the safety and the reliability are realized.
The scroll compressor adopts the oil circuit structure.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
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