WO2017219660A1 - Scroll compressor and air conditioner - Google Patents

Scroll compressor and air conditioner Download PDF

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Publication number
WO2017219660A1
WO2017219660A1 PCT/CN2017/070854 CN2017070854W WO2017219660A1 WO 2017219660 A1 WO2017219660 A1 WO 2017219660A1 CN 2017070854 W CN2017070854 W CN 2017070854W WO 2017219660 A1 WO2017219660 A1 WO 2017219660A1
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WO
WIPO (PCT)
Prior art keywords
passage
channel
scroll compressor
compression chamber
groove
Prior art date
Application number
PCT/CN2017/070854
Other languages
French (fr)
Chinese (zh)
Inventor
梁卫恒
餐场靖
黄柏英
新宅秀信
Original Assignee
广东美的暖通设备有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from CN201620633908.0U external-priority patent/CN205823630U/en
Priority claimed from CN201610466504.1A external-priority patent/CN105952638A/en
Application filed by 广东美的暖通设备有限公司, 美的集团股份有限公司 filed Critical 广东美的暖通设备有限公司
Publication of WO2017219660A1 publication Critical patent/WO2017219660A1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/18Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Definitions

  • the present invention relates to the field of refrigeration technology, and in particular to a scroll compressor and an air conditioner.
  • the existing scroll compressor includes an orbiting scroll and a fixed scroll
  • the orbiting scroll comprises a movable disc body and a moving gear extending in a spiral shape and an automatic disc body
  • the fixed scroll comprises a static disc body and a self-rotating disc
  • the static disk extends and is in the form of a spiral static gear
  • the moving gear of the movable scroll and the static gear of the fixed scroll mesh with each other to form a crescent-shaped compression cavity.
  • a refrigerant that supplies refrigerant to the compression chamber is provided on the static disk of the fixed scroll.
  • the gas passage, the supercooled refrigerant is replenished into the compression chamber through the supplementary air passage to form a quasi-secondary compression, and at the same time, the exhaust temperature of the scroll compressor is also reduced, thereby improving the performance of the scroll compressor under high pressure ratio conditions.
  • the scroll compressor when the scroll compressor is in the normal operation state, it is not necessary to replenish the refrigerant into the compression chamber, and at this time, the air supply passage forms a clearance volume communicating with the compression chamber, and the refrigerant in the air supply passage is in the scroll compressor.
  • the refrigerant When the refrigerant is compressed, it expands and compresses and generates respiratory loss, thus reducing the performance of the scroll compressor.
  • a primary object of the present invention is to provide a scroll compressor which is intended to reduce the clearance volume of a scroll compressor, reduce the breathing loss during operation of the scroll compressor, and improve the performance of the scroll compressor.
  • a scroll compressor includes an orbiting scroll and a fixed scroll, and the orbiting scroll and the fixed scroll mesh to form a compression chamber;
  • the static scroll includes a static a disk body having a first passage penetrating in the axial direction, a second passage extending radially from a side surface of the static disk body, and one end communicating with the first passage and the other end a third passage communicating with the second passage;
  • a movable valve piece is disposed in the third passage, and the movable valve piece controls the first passage according to a difference in air pressure between the first passage and the second passage Connected or blocked with the second channel.
  • the end surface of the static disc body away from the compression chamber is recessed with a connecting passage communicating with the second passage
  • the scroll compressor further includes a cover, and the cover is disposed on the first cover a port away from the compression chamber and the connecting channel are away from the port of the second channel, and the cover and the end surface of the static disk body away from the compression cavity are formed to form a sealed cavity, the connecting channel and The sealing chambers collectively constitute the third passage
  • the movable valve plate is installed in the sealed chamber, and controls the first passage according to a difference in air pressure between the first passage and the second passage The communication or blocking of the second channel.
  • the movable valve piece includes a fixed end fixedly connected to an end surface of the static disc body away from the compression chamber, and a free end extending to a port of the connecting passage away from the second passage, the free The end opens/blocks the port of the connecting channel away from the second channel according to a difference in air pressure between the first channel and the second channel.
  • the scroll compressor further includes a baffle, one end of the baffle is fixedly connected to the fixed end of the movable valve piece, and the other end of the baffle is located above the free end of the movable valve piece To limit the deformation stroke of the movable valve piece.
  • a sealing gasket is disposed between an end surface of the cover and an end surface of the static disc body away from the compression chamber.
  • the end surface of the static disc body away from the compression chamber is concavely provided with a first groove communicating with the second passage, and a second groove communicating with the first groove and the first passage;
  • the scroll compressor further includes a sealing cover that covers the first groove, the second groove, and a port of the first passage away from the compression chamber, the sealing cover and the sealing cover.
  • the first groove and the second groove together define the third passage, and the movable valve piece is installed in the first groove, and according to the first passage and the second passage The air pressure difference controls the communication or blocking of the first passage and the second passage.
  • the first groove is disposed adjacent to an inner wall surface of the second passage with a step portion for limiting the movable valve piece.
  • the surface of the static disc body away from the compression chamber is recessed with a mounting groove for mounting the sealing cover, and the sealing cover is installed in the mounting groove.
  • the static disk body is provided with a plurality of the first channels, and a plurality of the first channels are all disposed in communication with the third channel.
  • the present invention also provides an air conditioner comprising an orbiting scroll and a fixed scroll, the orbiting scroll and the fixed scroll meshing to form a compression chamber;
  • the static scroll comprises a static disk body,
  • the static disk body is provided with a first passage penetrating in the axial direction, a second passage extending radially from a side surface of the static disk body, and one end communicating with the first passage and the other end communicating with the second passage a third passage;
  • the third passage is provided with a movable valve piece, and the movable valve piece controls the first passage and the second according to a difference in air pressure between the first passage and the second passage Connect or block the channel.
  • the technical solution of the present invention provides a first channel, a second channel and a third channel on the disk of the fixed scroll to convey the refrigerant into the compression chamber, and also provides an active valve plate in the third channel, the activity
  • the valve piece controls the communication or blocking of the first passage and the second passage according to the air pressure difference between the first passage and the second passage.
  • the movable valve plate will be the first passage and the second passage.
  • the passage blockage thereby reducing the clearance volume communicating with the compression chamber, reduces the respiratory loss caused by the compression expansion of the refrigerant in the clearance volume, thereby improving the performance of the scroll compressor.
  • FIG. 1 is a schematic structural view of an embodiment of a scroll compressor of the present invention
  • Figure 2 is a schematic structural view of an embodiment of the fixed scroll of Figure 1;
  • Figure 3 is a schematic view showing the structure of another embodiment of the fixed scroll of Figure 1.
  • the directional indication is only used to explain the relative positional relationship between the components in a certain posture (as shown in the drawing), the motion situation, etc., if the specific posture changes, the directional indication also corresponds The ground changes accordingly.
  • first”, “second”, etc. in the embodiments of the present invention, the description of the "first”, “second”, etc. is used for the purpose of description only, and is not to be construed as an Its relative importance or implicit indication of the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. It is also within the scope of protection required by the present invention.
  • FIG. 1 is a schematic structural view of an embodiment of the present invention.
  • the scroll compressor 100 includes a casing 10, a fixed scroll 20 mounted in the casing 10, an orbiting scroll 30, and a movable valve piece 40.
  • the housing 10 serves as a closed container and its main function is to provide a sealed installation space for other components such as the orbiting scroll 30 and the fixed scroll 20.
  • the fixed scroll 20 includes a stationary disk body 21 and a static gear 22 extending from the stationary disk body 21 and having a spiral shape.
  • the movable scroll 30 includes a movable disk body 31 and an automatic disk body 31 extending in a spiral shape.
  • the gear 32, the stationary gear 22 on the fixed scroll 20 and the moving gear 32 on the orbiting scroll 30 mesh with each other to form a compression chamber 1a.
  • One end of the movable disc body 31 away from the fixed scroll 20 is connected to the eccentric rotating shaft 50 installed in the casing 10, and is eccentrically rotated by the eccentric rotating shaft 50, and the movable gear 32 is eccentrically rotated in the movable disc body 31.
  • the eccentric rotation motion is also performed, so that the compression chamber 1a formed by the mutual engagement of the static gear 22 on the fixed scroll 20 and the movable gear 32 on the movable scroll 30 is constantly changed, so that the refrigerant in the compression chamber 1a is compression.
  • the stationary disk body 21 and the casing 10 enclose an exhaust chamber 1b which is located on the side of the fixed scroll 20 facing away from the movable scroll 30.
  • the static disk body 21 is provided with an exhaust port 211, a pressure relief passage 212, and an air supply passage.
  • the exhaust port 211 and the pressure relief passage 212 are disposed in the axial direction through the static disk body 21, and the exhaust port 211 is preferably disposed in the middle of the static disk body 21 for discharging the pressurized refrigerant in the compression chamber 1a to the row.
  • Inside the air chamber 1b Inside the air chamber 1b.
  • the pressure relief passage 212 is mainly when the refrigerant in the compression chamber 1a is over-compressed, that is, when the refrigerant pressure in the exhaust chamber 1b is higher than the air pressure in the compression chamber 1a, part of the refrigerant in the supply and exhaust chamber 1b is discharged to the compression. Inside the cavity 1a.
  • the air supply passage includes a first passage 213 extending axially through the static disk body 21, a second passage 214 extending radially from a side surface of the static disk body 21, and one end communicating with the first passage 213, the other end and the second passage
  • the second passage communicating with the 214, when the refrigerant is delivered to the compression chamber 1a, the refrigerant is sequentially introduced into the compression chamber 1a through the second passage 214, the third passage, and the first passage 213.
  • the movable valve plate 40 is installed in the third passage and according to the air pressure between the first passage 213 and the second passage 214 The difference controls the communication or blocking of the first channel 213 and the second channel 214.
  • the scroll compressor 100 When the scroll compressor 100 is in the high pressure ratio operation state, in order to improve the performance of the scroll compressor 100, it is necessary to replenish the refrigerant into the compression chamber 1a.
  • the refrigerant in the second passage 214 can be replenished into the compression chamber 1a only when the air pressure of the external refrigerant is higher than the air pressure in the compression chamber 1a, that is, when the refrigerant is replenished into the compression chamber 1a.
  • the air pressure is greater than the air pressure of the refrigerant in the first passage 213.
  • the movable valve plate 40 is elastically deformed by the high pressure refrigerant, so that the first passage 213 and the second passage 214 are connected, thereby enabling the external refrigerant to smoothly replenish the medium compression.
  • the movable valve plate 40 is elastically deformed by the high pressure refrigerant, so that the first passage 213 and the second passage 214 are connected, thereby enabling the external refrigerant to smoothly replenish the medium compression.
  • the scroll compressor 100 When the scroll compressor 100 is in the normal operation state, at this time, it is not necessary to replenish the refrigerant into the compression chamber 1a, and the air supply passage of the scroll compressor 100, that is, the first passage 213 and the second of the scroll compressor 100.
  • Channel 214 and third channel are in an inactive state. Since the first passage 213 is in communication with the compression chamber 1a of the scroll compressor 100, at this time, the air pressure in the first passage 213 is higher than the air pressure in the second passage 214, and the movable valve plate 40 is in its own elastic action and the first passage.
  • the first passage 213 and the second passage 214 are blocked, thereby reducing the clearance volume communicating with the compression chamber 1a, effectively reducing the expansion and compression of the refrigerant in the clearance volume.
  • the breathing loss improves the performance of the scroll compressor 100.
  • the end surface of the static disk body 21 away from the compression chamber 1a is recessed with a connecting passage 215 communicating with the second passage 214.
  • the scroll compressor 100 further includes a cover 60 that covers the port of the first passage 213 away from the compression chamber 1a and the port of the connection passage 215 away from the second passage 214, and the cover 60 and the stationary plate body 21
  • a sealed chamber 1c is formed to surround the end surface of the compression chamber 1a. Therefore, the first passage 213 and the second passage 214 communicate with the sealed chamber 1c through the connecting passage 215, that is, the third passage of the scroll compressor 100 is constituted by the connecting passage 215 and the sealed chamber 1c.
  • a gasket 80 is provided between the end surface of the cover 60 and the end surface of the static disk body 21 away from the compression chamber 1a.
  • the gasket 80 is preferably made of a material having a good sealing property such as rubber, silica gel or the like.
  • the movable valve piece 40 is installed in the sealing cavity 1c.
  • the movable valve piece 40 has a fixed end and a free end.
  • the fixed end of the movable valve piece 40 is fixedly connected with the end surface of the static disk body 21 away from the compression cavity 1a, and the movable valve piece 40 is free.
  • the end extends to a port arrangement in which the third channel is remote from the second channel 214.
  • the scroll compressor 100 When the scroll compressor 100 is in the high pressure ratio operation state, in order to improve the performance of the scroll compressor 100, it is necessary to replenish the refrigerant into the compression chamber 1a.
  • the refrigerant in the second passage 214 can be replenished into the compression chamber 1a only when the air pressure of the external refrigerant is higher than the air pressure in the compression chamber 1a, that is, when the refrigerant is replenished into the compression chamber 1a.
  • the air pressure is greater than the air pressure of the refrigerant in the first passage 213.
  • the free end of the movable valve plate 40 is lifted by the high pressure refrigerant in the second passage 214, that is, the free end of the movable valve plate 40 is in the high pressure refrigerant.
  • the deformation occurs under the action, so that the port connecting the passage 215 away from the compression chamber 1a is opened, thereby enabling the external refrigerant to be compliant.
  • Lee enters the compression chamber 1a.
  • the scroll compressor 100 When the scroll compressor 100 is in the normal operation state, at this time, it is not necessary to replenish the refrigerant into the compression chamber 1a, and the air supply passage of the scroll compressor 100, that is, the first passage 213 and the second of the scroll compressor 100.
  • Channel 214 and third channel are in an inactive state. Since the first passage 213 is in communication with the compression chamber 1a of the scroll compressor 100, at this time, the air pressure in the first passage 213 is higher than the air pressure in the second passage 214, and the movable valve plate 40 is in its own elastic action and the first passage.
  • the port connecting the connecting passage 215 away from the compression chamber 1a is blocked, thereby blocking the first passage 213 and the second passage 214, thus reducing the clearance volume communicating with the compression chamber 1a, Further, the respiratory loss caused by the expansion and compression of the refrigerant in the clearance volume is effectively reduced, thereby improving the performance of the scroll compressor 100.
  • the movable valve plate 40 is preferably made of a material having good elastic properties and sealing performance, for example, 7C steel of Sandvik, the movable valve plate 40 may be arranged in a strip shape or in a fan shape.
  • the setting can also be other shapes, and no specific limitation is made here.
  • the scroll compressor 100 is further disposed above the movable valve plate 40 with a baffle 70 which is spaced apart from the end surface of the static disk body 21 away from the compression chamber 1a.
  • the baffle 70 is primarily used to limit the deformation stroke of the movable valve plate 40, thus ensuring that the deformation of the movable valve plate 40 does not exceed its own elastic limit.
  • one end of the baffle 70 is fixedly coupled to the fixed end of the movable valve plate 40, and the other end of the baffle 70 is located above the movable valve plate 40.
  • the movable valve piece 40 is elastically deformed, the movable valve piece 40 abuts against the shutter 70, thus further ensuring that the deformation of the movable valve piece 40 is not excessive.
  • the third passage is composed of a first groove 216, a second groove 217, and a first groove 216 and a second groove disposed on the static disk body 21.
  • the sealing covers 90 of 217 are constructed in common. Specifically, the first recess 216 is recessed from the end surface of the static disc body 21 away from the compression chamber 1a and communicated with the second passage 214.
  • the second recess 217 is recessed from the end surface of the static disc body 21 away from the compression chamber 1a and is A groove 216 is in communication with the first passage 213, and the sealing cover 90 seals the first passage 213 away from the port of the compression chamber 1a while closing the first groove 216 and the second groove 217, so that the scroll compression
  • the air supply passage of the machine 100 is only in communication with the compression chamber 1a.
  • the movable valve plate 40' is movably mounted in the first recess 216.
  • the movable valve piece 40' disposed in the first groove 216 is jacked up by the high pressure refrigerant and moves along the first groove 216 until the first The groove 216 is in communication with the second groove 217.
  • the first passage 213 communicates with the second passage 214, so that the external refrigerant can be delivered into the compression chamber 1a.
  • the first groove 216 is disposed in a cylindrical shape, and accordingly, the movable valve piece 40' is disposed to be fitted with the first groove 216.
  • the first groove 216 is further provided with a step portion 216a adjacent to the inner wall surface of the second passage 214, and the step portion 216a may be annular It may also be in the shape of an arc or other shape, which is not specifically limited herein, and is mainly used for limiting the movable valve piece 40'.
  • the surface of the static disk body 21 away from the compression chamber 1a is recessed with a mounting groove 218 for mounting the sealing cover 90.
  • the sealing cover 90 is fixedly mounted in the mounting groove 218.
  • the sealing cover 90 can be more stably mounted on the stationary plate body 21.
  • the surface of the sealing cover 90 is flush with the end surface of the stationary disk body 21 away from the compression chamber 1a.
  • the surface of the stationary disk body 21 away from the compression chamber 1a is made flatter.
  • the static disk body 21 is provided with a plurality of first passages 213, and the plurality of first passages 213 are each disposed in communication with the third passage.
  • a plurality of third channels may be disposed on the static disk body 21, and the plurality of third channels are respectively disposed in communication with the first channel 213; or the plurality of first channels 213 and the plurality of third portions are disposed on the static disk body 21.
  • the channel, the plurality of first channels 213 and the plurality of third channels are connected in a one-to-one correspondence.
  • no specific limitation is made.
  • the present invention also provides an air conditioner (not shown) including a scroll compressor 100.
  • the specific structure of the scroll compressor 100 refers to the above embodiment, since the air conditioner employs all of the above embodiments.
  • the technical solution therefore, has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be further described herein.

Abstract

A scroll compressor and an air conditioner. The scroll compressor (100) comprises an orbiting scroll member (30) and a non-orbiting scroll member (20) which are engaged with each other to form a compression cavity (1a). The non-orbiting scroll member (20) comprises a non-orbiting member body (21). The non-orbiting member body (21) is provided with a first channel (213) running through the non-orbiting member body (21) in the axial direction, a second channel (214) extending on a side face of the non-orbiting member body in the radial direction, and a third channel with one end thereof being in communication with the first channel (213) and the other end thereof being in communication with the second channel (214). A movable valve plate (40) is provided in the third channel. The movable valve plate (40) controls the first channel (213) and the second channel (214) to be in communication with each other or disconnected from each other according to the air pressure difference between the first channel (213) and the second channel (214). Thus, when it does not need to convey refrigerants to the compressor, the clearance volume for communication of the first channel (213) and the second channel (214) with the compression cavity is reduced, and the performance of the scroll compressor is improved.

Description

涡旋压缩机和空调器Scroll compressor and air conditioner 技术领域Technical field
本发明涉及制冷技术领域,特别涉及一种涡旋压缩机和空调器。The present invention relates to the field of refrigeration technology, and in particular to a scroll compressor and an air conditioner.
背景技术Background technique
现有的涡旋压缩机包括动涡旋盘和静涡旋盘,动涡旋盘包括动盘体和自动盘体延伸并呈螺旋线状的动齿轮,静涡旋盘包括静盘体和自静盘体延伸并呈螺旋线状的静齿轮,动涡旋盘的动齿轮和静涡旋盘的静齿轮相互啮合形成月牙形压缩腔。通常,为了保证涡旋压缩机在高压比工况时(如低温制热或高温制冷)仍具有较好的性能,会在静涡旋盘的静盘体上设置向压缩腔内输送冷媒的补气通道,过冷的冷媒通过补气通道补充至压缩腔内形成准二级压缩,同时还降低涡旋压缩机的排气温度,从而提高涡旋压缩机在高压比工况下的性能。The existing scroll compressor includes an orbiting scroll and a fixed scroll, and the orbiting scroll comprises a movable disc body and a moving gear extending in a spiral shape and an automatic disc body, and the fixed scroll comprises a static disc body and a self-rotating disc The static disk extends and is in the form of a spiral static gear, and the moving gear of the movable scroll and the static gear of the fixed scroll mesh with each other to form a crescent-shaped compression cavity. Generally, in order to ensure that the scroll compressor has better performance under high pressure ratio conditions (such as low temperature heating or high temperature refrigeration), a refrigerant that supplies refrigerant to the compression chamber is provided on the static disk of the fixed scroll. The gas passage, the supercooled refrigerant is replenished into the compression chamber through the supplementary air passage to form a quasi-secondary compression, and at the same time, the exhaust temperature of the scroll compressor is also reduced, thereby improving the performance of the scroll compressor under high pressure ratio conditions.
然而,当涡旋压缩机处于普通运行状态时,则不需要向压缩腔内补充冷媒,此时补气通道形成了与压缩腔连通的余隙容积,补气通道内的冷媒在涡旋压缩机压缩冷媒时会不断膨胀压缩并产生呼吸损失,如此降低了涡旋压缩机的性能。However, when the scroll compressor is in the normal operation state, it is not necessary to replenish the refrigerant into the compression chamber, and at this time, the air supply passage forms a clearance volume communicating with the compression chamber, and the refrigerant in the air supply passage is in the scroll compressor. When the refrigerant is compressed, it expands and compresses and generates respiratory loss, thus reducing the performance of the scroll compressor.
发明内容Summary of the invention
本发明的主要目的是提出一种涡旋压缩机,旨在减小涡旋压缩机的余隙容积,降低涡旋压缩机运转时的呼吸损失,提高涡旋压缩机的性能。SUMMARY OF THE INVENTION A primary object of the present invention is to provide a scroll compressor which is intended to reduce the clearance volume of a scroll compressor, reduce the breathing loss during operation of the scroll compressor, and improve the performance of the scroll compressor.
为实现上述目的,本发明提出的涡旋压缩机,其包括动涡旋盘和静涡旋盘,所述动涡旋盘和静涡旋盘啮合形成压缩腔;所述静涡旋盘包括静盘体,所述静盘体设有沿轴向贯穿设置的第一通道、自所述静盘体的侧面径向延伸的第二通道,以及一端与所述第一通道连通、另一端与所述第二通道连通的第三通道;所述第三通道内设有活动阀片,所述活动阀片根据所述第一通道和所述第二通道之间的气压差控制所述第一通道和所述第二通道的连通或阻断。In order to achieve the above object, a scroll compressor according to the present invention includes an orbiting scroll and a fixed scroll, and the orbiting scroll and the fixed scroll mesh to form a compression chamber; the static scroll includes a static a disk body having a first passage penetrating in the axial direction, a second passage extending radially from a side surface of the static disk body, and one end communicating with the first passage and the other end a third passage communicating with the second passage; a movable valve piece is disposed in the third passage, and the movable valve piece controls the first passage according to a difference in air pressure between the first passage and the second passage Connected or blocked with the second channel.
优选地,所述静盘体远离所述压缩腔的端面凹设有连通所述第二通道的连接通道,所述涡旋压缩机还包括一罩盖,所述罩盖盖设于所述第一通道远离所述压缩腔的端口和所述连接通道远离所述第二通道的端口,且所述罩盖与所述静盘体远离压缩腔的端面围设形成密封腔,所述连接通道和所述密封腔共同构成所述第三通道,所述活动阀片安装于所述密封腔内,并根据所述第一通道和所述第二通道之间的气压差控制所述第一通道和所述第二通道的连通或阻断。 Preferably, the end surface of the static disc body away from the compression chamber is recessed with a connecting passage communicating with the second passage, the scroll compressor further includes a cover, and the cover is disposed on the first cover a port away from the compression chamber and the connecting channel are away from the port of the second channel, and the cover and the end surface of the static disk body away from the compression cavity are formed to form a sealed cavity, the connecting channel and The sealing chambers collectively constitute the third passage, the movable valve plate is installed in the sealed chamber, and controls the first passage according to a difference in air pressure between the first passage and the second passage The communication or blocking of the second channel.
优选地,所述活动阀片包括与所述静盘体远离所述压缩腔的端面固定连接的固定端,以及延伸至所述连接通道远离所述第二通道的端口的自由端,所述自由端根据所述第一通道与所述第二通道之间的气压差打开/封堵所述连接通道远离所述第二通道的端口。Preferably, the movable valve piece includes a fixed end fixedly connected to an end surface of the static disc body away from the compression chamber, and a free end extending to a port of the connecting passage away from the second passage, the free The end opens/blocks the port of the connecting channel away from the second channel according to a difference in air pressure between the first channel and the second channel.
优选地,所述涡旋压缩机还包一挡板,所述挡板的一端与所述活动阀片的固定端固定连接,所述挡板的另一端位于所述活动阀片的自由端上方,以限制所述活动阀片的形变行程。Preferably, the scroll compressor further includes a baffle, one end of the baffle is fixedly connected to the fixed end of the movable valve piece, and the other end of the baffle is located above the free end of the movable valve piece To limit the deformation stroke of the movable valve piece.
优选地,所述罩盖的端面与所述静盘体远离所述压缩腔的端面之间设置有密封垫片。Preferably, a sealing gasket is disposed between an end surface of the cover and an end surface of the static disc body away from the compression chamber.
优选地,所述静盘体远离所述压缩腔的端面凹设有连通所述第二通道的第一凹槽、以及连通所述第一凹槽和所述第一通道的第二凹槽;所述涡旋压缩机还包括一密封盖,所述密封盖盖合所述第一凹槽、第二凹槽以及所述第一通道远离所述压缩腔的端口,所述密封盖与所述第一凹槽和所述第二凹槽共同围成所述第三通道,所述活动阀片安装于所述第一凹槽中,并根据所述第一通道和所述第二通道之间的气压差控制所述第一通道和所述第二通道的连通或阻断。Preferably, the end surface of the static disc body away from the compression chamber is concavely provided with a first groove communicating with the second passage, and a second groove communicating with the first groove and the first passage; The scroll compressor further includes a sealing cover that covers the first groove, the second groove, and a port of the first passage away from the compression chamber, the sealing cover and the sealing cover The first groove and the second groove together define the third passage, and the movable valve piece is installed in the first groove, and according to the first passage and the second passage The air pressure difference controls the communication or blocking of the first passage and the second passage.
优选地,所述第一凹槽邻近所述第二通道的内壁面设置有台阶部,所述台阶部用于限位所述活动阀片。Preferably, the first groove is disposed adjacent to an inner wall surface of the second passage with a step portion for limiting the movable valve piece.
优选地,所述静盘体远离所述压缩腔的表面凹设有供所述密封盖安装的安装槽,所述密封盖安装于所述安装槽内。Preferably, the surface of the static disc body away from the compression chamber is recessed with a mounting groove for mounting the sealing cover, and the sealing cover is installed in the mounting groove.
优选地,所述静盘体设置有多个所述第一通道,且多个所述第一通道均与所述第三通道连通设置。Preferably, the static disk body is provided with a plurality of the first channels, and a plurality of the first channels are all disposed in communication with the third channel.
本发明还提出一种空调器,其包括动涡旋盘和静涡旋盘,所述动涡旋盘和静涡旋盘啮合形成压缩腔;所述静涡旋盘包括静盘体,所述静盘体设有沿轴向贯穿设置的第一通道、自所述静盘体的侧面径向延伸的第二通道,以及一端与所述第一通道连通、另一端与所述第二通道连通的第三通道;所述第三通道内设有活动阀片,所述活动阀片根据所述第一通道和所述第二通道之间的气压差控制所述第一通道和所述第二通道的连通或阻断。The present invention also provides an air conditioner comprising an orbiting scroll and a fixed scroll, the orbiting scroll and the fixed scroll meshing to form a compression chamber; the static scroll comprises a static disk body, The static disk body is provided with a first passage penetrating in the axial direction, a second passage extending radially from a side surface of the static disk body, and one end communicating with the first passage and the other end communicating with the second passage a third passage; the third passage is provided with a movable valve piece, and the movable valve piece controls the first passage and the second according to a difference in air pressure between the first passage and the second passage Connect or block the channel.
本发明技术方案通过在静涡旋盘的盘体上设置第一通道、第二通道以及第三通道,以向压缩腔内输送冷媒,并且,还于第三通道内设置活动阀片,该活动阀片根据第一通道和第二通道之间的气压差控制第一通道和第二通道的连通或者阻断,在不需要向压缩腔内输送冷媒时,活动阀片将第一通道和第二通道阻断,进而减小了与压缩腔连通的余隙容积,降低了余隙容积内冷媒压缩膨胀产生的呼吸损失,从而提高了涡旋压缩机的性能。 The technical solution of the present invention provides a first channel, a second channel and a third channel on the disk of the fixed scroll to convey the refrigerant into the compression chamber, and also provides an active valve plate in the third channel, the activity The valve piece controls the communication or blocking of the first passage and the second passage according to the air pressure difference between the first passage and the second passage. When the refrigerant is not required to be conveyed into the compression chamber, the movable valve plate will be the first passage and the second passage. The passage blockage, thereby reducing the clearance volume communicating with the compression chamber, reduces the respiratory loss caused by the compression expansion of the refrigerant in the clearance volume, thereby improving the performance of the scroll compressor.
附图说明DRAWINGS
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图示出的结构获得其他的附图。In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and those skilled in the art can obtain other drawings according to the structures shown in the drawings without any creative work.
图1为本发明涡旋压缩机一实施例的结构示意图;1 is a schematic structural view of an embodiment of a scroll compressor of the present invention;
图2为图1中静涡旋盘的一实施例的结构示意图;Figure 2 is a schematic structural view of an embodiment of the fixed scroll of Figure 1;
图3为图1中静涡旋盘的另一实施例的结构示意图。Figure 3 is a schematic view showing the structure of another embodiment of the fixed scroll of Figure 1.
附图标号说明:Description of the reference numerals:
标号Label 名称 name 标号Label 名称name
100100 涡旋压缩机 Scroll compressor 212212 泄压通道 Pressure relief channel
1010 壳体 case 213213 第一通道 First channel
2020 静涡旋盘 Static scroll 214214 第二通道 Second channel
3030 动涡旋盘 Moving scroll 215215 连接通道 Connection channel
40/40'40/40' 活动阀片 Active valve 6060 罩盖Cover
21twenty one 静盘体 Static plate 1c1c 密封腔Sealed cavity
22twenty two 静齿轮 Static gear 7070 挡板 Baffle
3131 动盘体 Dynamic disk 8080 密封垫 Seal
3232 动齿轮 Moving gear 216216 第一凹槽First groove
1a 1a 压缩腔Compression chamber 217217 第二凹槽 Second groove
5050 偏心转轴 Eccentric shaft 9090 密封盖Sealing cap
1b 1b 排气腔Exhaust chamber 216a216a 台阶部Step
211211 排气口 exhaust vent 218218 安装槽Mounting slot
本发明目的的实现、功能特点及优点将结合实施例,参照附图做进一步说明。The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.
具体实施方式detailed description
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
需要说明,若本发明实施例中有涉及方向性指示(诸如上、下、左、右、前、后……), 则该方向性指示仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等,如果该特定姿态发生改变时,则该方向性指示也相应地随之改变。It should be noted that, if there is a directional indication (such as up, down, left, right, front, back, ...) in the embodiment of the present invention, Then the directional indication is only used to explain the relative positional relationship between the components in a certain posture (as shown in the drawing), the motion situation, etc., if the specific posture changes, the directional indication also corresponds The ground changes accordingly.
另外,若本发明实施例中有涉及“第一”、“第二”等的描述,则该“第一”、“第二”等的描述仅用于描述目的,而不能理解为指示或暗示其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至少一个该特征。另外,各个实施例之间的技术方案可以相互结合,但是必须是以本领域普通技术人员能够实现为基础,当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在,也不在本发明要求的保护范围之内。In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of the "first", "second", etc. is used for the purpose of description only, and is not to be construed as an Its relative importance or implicit indication of the number of technical features indicated. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. It is also within the scope of protection required by the present invention.
为了解决涡旋压缩机处于普通运行状态时,涡旋压缩机的余隙容积内的冷媒不断膨胀压缩并产生呼吸损失,而降低涡旋压缩机性能的问题,本发明提出一种涡旋压缩机,请参照图1,图1为本发明一实施例的结构示意图。In order to solve the problem that the refrigerant in the clearance volume of the scroll compressor is continuously expanded and compressed and generates respiratory loss, and the performance of the scroll compressor is lowered, the scroll compressor is proposed. Please refer to FIG. 1. FIG. 1 is a schematic structural view of an embodiment of the present invention.
该涡旋压缩机100包括壳体10、安装于壳体10内的静涡旋盘20、动涡旋盘30和活动阀片40等其他零部件。The scroll compressor 100 includes a casing 10, a fixed scroll 20 mounted in the casing 10, an orbiting scroll 30, and a movable valve piece 40.
该壳体10作为一个密闭的容器,其主要作用是为动涡旋盘30、静涡旋盘20等其他零部件提供一个密闭的安装空间。The housing 10 serves as a closed container and its main function is to provide a sealed installation space for other components such as the orbiting scroll 30 and the fixed scroll 20.
静涡旋盘20包括静盘体21和自静盘体21延伸并呈螺旋线状的静齿轮22,动涡旋盘30包括动盘体31和自动盘体31延伸并呈螺旋线状的动齿轮32,静涡旋盘20上的静齿轮22与动涡旋盘30上的动齿轮32相互啮合形成压缩腔1a。The fixed scroll 20 includes a stationary disk body 21 and a static gear 22 extending from the stationary disk body 21 and having a spiral shape. The movable scroll 30 includes a movable disk body 31 and an automatic disk body 31 extending in a spiral shape. The gear 32, the stationary gear 22 on the fixed scroll 20 and the moving gear 32 on the orbiting scroll 30 mesh with each other to form a compression chamber 1a.
动盘体31远离静涡旋盘20的一端与安装于壳体10内的偏心转轴50连接,并在偏心转轴50的带动下做偏心回转运动,动齿轮32在动盘体31做偏心回转运动的同时也做偏心回转运动,进而使得由静涡旋盘20上的静齿轮22与动涡旋盘30上的动齿轮32相互啮合形成的压缩腔1a不断改变,使得压缩腔1a内的冷媒被压缩。One end of the movable disc body 31 away from the fixed scroll 20 is connected to the eccentric rotating shaft 50 installed in the casing 10, and is eccentrically rotated by the eccentric rotating shaft 50, and the movable gear 32 is eccentrically rotated in the movable disc body 31. At the same time, the eccentric rotation motion is also performed, so that the compression chamber 1a formed by the mutual engagement of the static gear 22 on the fixed scroll 20 and the movable gear 32 on the movable scroll 30 is constantly changed, so that the refrigerant in the compression chamber 1a is compression.
静盘体21与壳体10围设形成排气腔1b,该排气腔1b位于静涡旋盘20背对动涡旋盘30的一侧。该静盘体21上设置有排气口211、泄压通道212以及补气通道。其中,排气口211和泄压通道212沿轴向贯穿静盘体21设置,该排气口211优选设置于静盘体21的中部,其用于供压缩腔1a内的受压冷媒排至排气腔1b内。泄压通道212主要是在压缩腔1a内的冷媒处于过压缩时,也即排气腔1b内的冷媒气压高于压缩腔1a内的气压时,供排气腔1b内的部分冷媒排至压缩腔1a内。该补气通道包括沿轴向贯穿静盘体21的第一通道213、自静盘体21的侧面径向延伸的第二通道214、以及一端与第一通道213连通,另一端与第二通道214连通的第三通道,当向压缩腔1a输送冷媒时,冷媒需依次通过第二通道214、第三通道以及第一通道213进入压缩腔1a内。The stationary disk body 21 and the casing 10 enclose an exhaust chamber 1b which is located on the side of the fixed scroll 20 facing away from the movable scroll 30. The static disk body 21 is provided with an exhaust port 211, a pressure relief passage 212, and an air supply passage. The exhaust port 211 and the pressure relief passage 212 are disposed in the axial direction through the static disk body 21, and the exhaust port 211 is preferably disposed in the middle of the static disk body 21 for discharging the pressurized refrigerant in the compression chamber 1a to the row. Inside the air chamber 1b. The pressure relief passage 212 is mainly when the refrigerant in the compression chamber 1a is over-compressed, that is, when the refrigerant pressure in the exhaust chamber 1b is higher than the air pressure in the compression chamber 1a, part of the refrigerant in the supply and exhaust chamber 1b is discharged to the compression. Inside the cavity 1a. The air supply passage includes a first passage 213 extending axially through the static disk body 21, a second passage 214 extending radially from a side surface of the static disk body 21, and one end communicating with the first passage 213, the other end and the second passage The second passage communicating with the 214, when the refrigerant is delivered to the compression chamber 1a, the refrigerant is sequentially introduced into the compression chamber 1a through the second passage 214, the third passage, and the first passage 213.
活动阀片40安装于第三通道内,并根据第一通道213和第二通道214之间的气压 差控制第一通道213和第二通道214的连通或者阻断。The movable valve plate 40 is installed in the third passage and according to the air pressure between the first passage 213 and the second passage 214 The difference controls the communication or blocking of the first channel 213 and the second channel 214.
在涡旋压缩机100处于高压比工况时,为了提高涡旋压缩机100的性能,需要向压缩腔1a内补充冷媒。可以理解的是,只有当外部冷媒的气压高于压缩腔1a内的气压时,才可以将冷媒补充至压缩腔1a内,也即向压缩腔1a内补充冷媒时,第二通道214内的冷媒气压大于第一通道213内冷媒的气压,此时,活动阀片40在高压冷媒的作用下发生弹性形变,从而使得第一通道213和第二通道214连通,进而使得外部冷媒能够顺利补充中压缩腔1a内。When the scroll compressor 100 is in the high pressure ratio operation state, in order to improve the performance of the scroll compressor 100, it is necessary to replenish the refrigerant into the compression chamber 1a. It can be understood that the refrigerant in the second passage 214 can be replenished into the compression chamber 1a only when the air pressure of the external refrigerant is higher than the air pressure in the compression chamber 1a, that is, when the refrigerant is replenished into the compression chamber 1a. The air pressure is greater than the air pressure of the refrigerant in the first passage 213. At this time, the movable valve plate 40 is elastically deformed by the high pressure refrigerant, so that the first passage 213 and the second passage 214 are connected, thereby enabling the external refrigerant to smoothly replenish the medium compression. Inside the cavity 1a.
在涡旋压缩机100处于普通运行状态时,此时,不需要向压缩腔1a内补充冷媒,涡旋压缩机100的补气通道,也即涡旋压缩机100的第一通道213、第二通道214和第三通道处于不工作状态。由于第一通道213和涡旋压缩机100的压缩腔1a连通,此时,第一通道213内的气压高于第二通道214内的气压,活动阀片40在自身的弹性作用和第一通道213内的冷媒的作用下,而将第一通道213和第二通道214阻断,从而减小了与压缩腔1a连通的余隙容积,有效地降低了余隙容积内冷媒的膨胀压缩产生的呼吸损失,进而提高了涡旋压缩机100的性能。When the scroll compressor 100 is in the normal operation state, at this time, it is not necessary to replenish the refrigerant into the compression chamber 1a, and the air supply passage of the scroll compressor 100, that is, the first passage 213 and the second of the scroll compressor 100. Channel 214 and third channel are in an inactive state. Since the first passage 213 is in communication with the compression chamber 1a of the scroll compressor 100, at this time, the air pressure in the first passage 213 is higher than the air pressure in the second passage 214, and the movable valve plate 40 is in its own elastic action and the first passage. Under the action of the refrigerant in 213, the first passage 213 and the second passage 214 are blocked, thereby reducing the clearance volume communicating with the compression chamber 1a, effectively reducing the expansion and compression of the refrigerant in the clearance volume. The breathing loss, in turn, improves the performance of the scroll compressor 100.
在本发明的一实施例中,请参照图2,静盘体21远离压缩腔1a的端面凹设有连通第二通道214的连接通道215,为了将第一通道213和第二通道214连通,涡旋压缩机100还包括一罩盖60,该罩盖60罩设于第一通道213远离压缩腔1a的端口和连接通道215远离第二通道214的端口,并且罩盖60与静盘体21远离压缩腔1a的端面围设形成密封腔1c。因此,第一通道213和第二通道214通过连接通道215和密封腔1c连通,也即涡旋压缩机100的第三通道由连接通道215和密封腔1c共同构成。为了保证罩盖60与静盘体21远离压缩腔1a的端面的密封性,该罩盖60的端面与静盘体21远离压缩腔1a的端面之间设置有密封垫80。该密封垫80优选采用密封性较好的材料制成,例如:橡胶、硅胶等等。In an embodiment of the present invention, referring to FIG. 2, the end surface of the static disk body 21 away from the compression chamber 1a is recessed with a connecting passage 215 communicating with the second passage 214. To connect the first passage 213 and the second passage 214, The scroll compressor 100 further includes a cover 60 that covers the port of the first passage 213 away from the compression chamber 1a and the port of the connection passage 215 away from the second passage 214, and the cover 60 and the stationary plate body 21 A sealed chamber 1c is formed to surround the end surface of the compression chamber 1a. Therefore, the first passage 213 and the second passage 214 communicate with the sealed chamber 1c through the connecting passage 215, that is, the third passage of the scroll compressor 100 is constituted by the connecting passage 215 and the sealed chamber 1c. In order to ensure the sealing property of the cover 60 and the stationary disk body 21 away from the end surface of the compression chamber 1a, a gasket 80 is provided between the end surface of the cover 60 and the end surface of the static disk body 21 away from the compression chamber 1a. The gasket 80 is preferably made of a material having a good sealing property such as rubber, silica gel or the like.
活动阀片40安装于密封腔1c内,该活动阀片40具有固定端和自由端,活动阀片40的固定端与静盘体21远离压缩腔1a的端面固定连接,活动阀片40的自由端延伸至第三通道远离第二通道214的端口设置。The movable valve piece 40 is installed in the sealing cavity 1c. The movable valve piece 40 has a fixed end and a free end. The fixed end of the movable valve piece 40 is fixedly connected with the end surface of the static disk body 21 away from the compression cavity 1a, and the movable valve piece 40 is free. The end extends to a port arrangement in which the third channel is remote from the second channel 214.
在涡旋压缩机100处于高压比工况时,为了提高涡旋压缩机100的性能,需要向压缩腔1a内补充冷媒。可以理解的是,只有当外部冷媒的气压高于压缩腔1a内的气压时,才可以将冷媒补充至压缩腔1a内,也即向压缩腔1a内补充冷媒时,第二通道214内的冷媒气压大于第一通道213内冷媒的气压,此时,活动阀片40的自由端在第二通道214内的高压冷媒的作用下而被顶起,也即活动阀片40的自由端在高压冷媒的作用下发生形变,从而使得连接通道215远离压缩腔1a的端口被打开,进而使得外部冷媒能够顺 利进入压缩腔1a内。When the scroll compressor 100 is in the high pressure ratio operation state, in order to improve the performance of the scroll compressor 100, it is necessary to replenish the refrigerant into the compression chamber 1a. It can be understood that the refrigerant in the second passage 214 can be replenished into the compression chamber 1a only when the air pressure of the external refrigerant is higher than the air pressure in the compression chamber 1a, that is, when the refrigerant is replenished into the compression chamber 1a. The air pressure is greater than the air pressure of the refrigerant in the first passage 213. At this time, the free end of the movable valve plate 40 is lifted by the high pressure refrigerant in the second passage 214, that is, the free end of the movable valve plate 40 is in the high pressure refrigerant. The deformation occurs under the action, so that the port connecting the passage 215 away from the compression chamber 1a is opened, thereby enabling the external refrigerant to be compliant. Lee enters the compression chamber 1a.
在涡旋压缩机100处于普通运行状态时,此时,不需要向压缩腔1a内补充冷媒,涡旋压缩机100的补气通道,也即涡旋压缩机100的第一通道213、第二通道214和第三通道处于不工作状态。由于第一通道213和涡旋压缩机100的压缩腔1a连通,此时,第一通道213内的气压高于第二通道214内的气压,活动阀片40在自身的弹性作用和第一通道213内的冷媒作用下,而将连接通道215远离压缩腔1a的端口封堵,从而将第一通道213和第二通道214阻断,如此,减小了与压缩腔1a连通的余隙容积,进而有效地降低了余隙容积内冷媒的膨胀压缩产生的呼吸损失,进而提高了涡旋压缩机100的性能。When the scroll compressor 100 is in the normal operation state, at this time, it is not necessary to replenish the refrigerant into the compression chamber 1a, and the air supply passage of the scroll compressor 100, that is, the first passage 213 and the second of the scroll compressor 100. Channel 214 and third channel are in an inactive state. Since the first passage 213 is in communication with the compression chamber 1a of the scroll compressor 100, at this time, the air pressure in the first passage 213 is higher than the air pressure in the second passage 214, and the movable valve plate 40 is in its own elastic action and the first passage. Under the action of the refrigerant in 213, the port connecting the connecting passage 215 away from the compression chamber 1a is blocked, thereby blocking the first passage 213 and the second passage 214, thus reducing the clearance volume communicating with the compression chamber 1a, Further, the respiratory loss caused by the expansion and compression of the refrigerant in the clearance volume is effectively reduced, thereby improving the performance of the scroll compressor 100.
需要说明的是,该活动阀片40优选采用弹性性能和密封性能均较好的材料制成,例如:山特维克的7C钢,该活动阀片40可以呈长条状设置,也可以呈扇形设置,当然还可以为其他形状,在此,不做具体的限定。It should be noted that the movable valve plate 40 is preferably made of a material having good elastic properties and sealing performance, for example, 7C steel of Sandvik, the movable valve plate 40 may be arranged in a strip shape or in a fan shape. The setting, of course, can also be other shapes, and no specific limitation is made here.
为了避免活动阀片40形变过度而无法恢复,该涡旋压缩机100还于活动阀片40的上方设置有一挡板70,该挡板70与静盘体21远离压缩腔1a的端面间隔设置,该挡板70主要用于限制活动阀片40的形变行程,如此,可以确保活动阀片40发生的形变不会超过其自身的弹性限度。In order to prevent the active valve plate 40 from being deformed and unable to recover, the scroll compressor 100 is further disposed above the movable valve plate 40 with a baffle 70 which is spaced apart from the end surface of the static disk body 21 away from the compression chamber 1a. The baffle 70 is primarily used to limit the deformation stroke of the movable valve plate 40, thus ensuring that the deformation of the movable valve plate 40 does not exceed its own elastic limit.
优选地,该挡板70的一端与活动阀片40的固定端固定连接,该挡板70的另一端位于活动阀片40的上方。活动阀片40发生弹性形变时,活动阀片40与挡板70抵接,如此,进一步地确保了活动阀片40各处的形变不会过度。Preferably, one end of the baffle 70 is fixedly coupled to the fixed end of the movable valve plate 40, and the other end of the baffle 70 is located above the movable valve plate 40. When the movable valve piece 40 is elastically deformed, the movable valve piece 40 abuts against the shutter 70, thus further ensuring that the deformation of the movable valve piece 40 is not excessive.
在本发明的另一实施例中,请参照图3,第三通道由设置于静盘体21上的第一凹槽216、第二凹槽217和封盖第一凹槽216和第二凹槽217的密封盖90共同构成。具体的,第一凹槽216自静盘体21远离压缩腔1a的端面凹设并连通第二通道214设置,第二凹槽217自静盘体21远离压缩腔1a的端面凹设并与第一凹槽216和第一通道213连通,密封盖90在盖合第一凹槽216和第二凹槽217的同时,还将第一通道213远离压缩腔1a的端口密封,以使得涡旋压缩机100的补气通道仅与压缩腔1a连通。In another embodiment of the present invention, referring to FIG. 3, the third passage is composed of a first groove 216, a second groove 217, and a first groove 216 and a second groove disposed on the static disk body 21. The sealing covers 90 of 217 are constructed in common. Specifically, the first recess 216 is recessed from the end surface of the static disc body 21 away from the compression chamber 1a and communicated with the second passage 214. The second recess 217 is recessed from the end surface of the static disc body 21 away from the compression chamber 1a and is A groove 216 is in communication with the first passage 213, and the sealing cover 90 seals the first passage 213 away from the port of the compression chamber 1a while closing the first groove 216 and the second groove 217, so that the scroll compression The air supply passage of the machine 100 is only in communication with the compression chamber 1a.
该活动阀片40'活动安装于第一凹槽216内。在涡旋压缩机100处于高压比工况时,为了提高涡旋压缩机100的性能,需要向压缩腔1a内补充冷媒。可以理解的是,只有当外部冷媒的气压高于压缩腔1a内的气压时,才可以将冷媒补充至压缩腔1a内,也即向压缩腔1a内补充冷媒时,第二通道214内的冷媒气压大于第一通道213内冷媒的气压,此时,设置于第一凹槽216内的活动阀片40'在高压冷媒的作用下被顶起,并沿第一凹槽216移动,直至第一凹槽216和第二凹槽217连通,此时,第一通道213与第二通道214连通,进而使得外部冷媒能够输送至压缩腔1a内。 The movable valve plate 40' is movably mounted in the first recess 216. When the scroll compressor 100 is in the high pressure ratio operation state, in order to improve the performance of the scroll compressor 100, it is necessary to replenish the refrigerant into the compression chamber 1a. It can be understood that the refrigerant in the second passage 214 can be replenished into the compression chamber 1a only when the air pressure of the external refrigerant is higher than the air pressure in the compression chamber 1a, that is, when the refrigerant is replenished into the compression chamber 1a. The air pressure is greater than the air pressure of the refrigerant in the first passage 213. At this time, the movable valve piece 40' disposed in the first groove 216 is jacked up by the high pressure refrigerant and moves along the first groove 216 until the first The groove 216 is in communication with the second groove 217. At this time, the first passage 213 communicates with the second passage 214, so that the external refrigerant can be delivered into the compression chamber 1a.
在涡旋压缩机100处于普通运行状态时,此时,不需要向压缩腔1a内补充冷媒,涡旋压缩机100的补气通道,也即涡旋压缩机100的第一通道213、第二通道214和第三通道处于不工作状态。此时,活动阀片40'在自身的重力和第一通道213内冷媒的作用下,封堵第一凹槽216邻近第二通道214的端口。此时,第一通道213与第二通道214被活动阀片40'阻断,减小了涡旋压缩机100的余隙容积,从而,有效地降低了余隙容积内冷媒的膨胀压缩产生的呼吸损失,有利于提高了涡旋压缩机100的性能。When the scroll compressor 100 is in the normal operation state, at this time, it is not necessary to replenish the refrigerant into the compression chamber 1a, and the air supply passage of the scroll compressor 100, that is, the first passage 213 and the second of the scroll compressor 100. Channel 214 and third channel are in an inactive state. At this time, the movable valve piece 40' blocks the first groove 216 from the port of the second passage 214 under the action of its own gravity and the refrigerant in the first passage 213. At this time, the first passage 213 and the second passage 214 are blocked by the movable valve piece 40', which reduces the clearance volume of the scroll compressor 100, thereby effectively reducing the expansion and compression of the refrigerant in the clearance volume. Breathing loss is beneficial to improve the performance of the scroll compressor 100.
需要说明的是,为了方便活动阀片40'沿第一凹槽216移动,第一凹槽216设置成圆柱状,相应地,活动阀片40'设置成与第一凹槽216适配。It should be noted that, in order to facilitate the movement of the movable valve piece 40' along the first groove 216, the first groove 216 is disposed in a cylindrical shape, and accordingly, the movable valve piece 40' is disposed to be fitted with the first groove 216.
为了避免活动阀片40'从第一凹槽216掉落至第二通道214内,第一凹槽216邻近第二通道214的内壁面还设置有台阶部216a,该台阶部216a可以呈环状、也可以呈弧状或者其他形状,在此不做具体的限定,其主要用于对活动阀片40'进行限位。In order to prevent the movable valve piece 40' from falling from the first groove 216 into the second passage 214, the first groove 216 is further provided with a step portion 216a adjacent to the inner wall surface of the second passage 214, and the step portion 216a may be annular It may also be in the shape of an arc or other shape, which is not specifically limited herein, and is mainly used for limiting the movable valve piece 40'.
为了方便密封盖90定位安装于静盘体21上,该静盘体21远离压缩腔1a的表面凹设有供密封盖90安装的安装槽218,该密封盖90固定安装于安装槽218内。如此,密封盖90能够更稳固的安装于静盘体21上。进一步地,该密封盖90的表面与静盘体21远离压缩腔1a的端面平齐设置。如此,使得静盘体21远离压缩腔1a的表面更平整。In order to facilitate the positioning of the sealing cover 90 on the static disk body 21, the surface of the static disk body 21 away from the compression chamber 1a is recessed with a mounting groove 218 for mounting the sealing cover 90. The sealing cover 90 is fixedly mounted in the mounting groove 218. Thus, the sealing cover 90 can be more stably mounted on the stationary plate body 21. Further, the surface of the sealing cover 90 is flush with the end surface of the stationary disk body 21 away from the compression chamber 1a. Thus, the surface of the stationary disk body 21 away from the compression chamber 1a is made flatter.
为了提高涡旋压缩机100的补充冷媒的速度,该静盘体21上设置有多个第一通道213,并且,多个第一通道213均与第三通道连通设置。或者该静盘体21上还可以设置多个第三通道,多个第三通道均与一个第一通道213连通设置;或者该静盘体21上设置多个第一通道213和多个第三通道,多个第一通道213和多个第三通道一一对应连通设置。在此,不做具体的限定。In order to increase the speed of the replenishing refrigerant of the scroll compressor 100, the static disk body 21 is provided with a plurality of first passages 213, and the plurality of first passages 213 are each disposed in communication with the third passage. Or a plurality of third channels may be disposed on the static disk body 21, and the plurality of third channels are respectively disposed in communication with the first channel 213; or the plurality of first channels 213 and the plurality of third portions are disposed on the static disk body 21. The channel, the plurality of first channels 213 and the plurality of third channels are connected in a one-to-one correspondence. Here, no specific limitation is made.
本发明还提出一种空调器(未图示),该空调器包括涡旋压缩机100,该涡旋压缩机100的具体结构参照上述实施例,由于本空调器采用了上述所有实施例的全部技术方案,因此至少具有上述实施例的技术方案所带来的所有有益效果,在此不再一一赘述。The present invention also provides an air conditioner (not shown) including a scroll compressor 100. The specific structure of the scroll compressor 100 refers to the above embodiment, since the air conditioner employs all of the above embodiments. The technical solution, therefore, has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be further described herein.
以上所述仅为本发明的优选实施例,并非因此限制本发明的专利范围,凡是在本发明的发明构思下,利用本发明说明书及附图内容所作的等效结构变换,或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。 The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structural transformation, or direct/indirect use, of the present invention and the contents of the drawings are used in the inventive concept of the present invention. It is included in the scope of the patent protection of the present invention in other related technical fields.

Claims (10)

  1. 一种涡旋压缩机,其特征在于,包括动涡旋盘和静涡旋盘,所述动涡旋盘和静涡旋盘啮合形成压缩腔;A scroll compressor comprising an orbiting scroll and a fixed scroll, the orbiting scroll and the fixed scroll meshing to form a compression chamber;
    所述静涡旋盘包括静盘体,所述静盘体设有沿轴向贯穿设置的第一通道、自所述静盘体的侧面径向延伸的第二通道,以及一端与所述第一通道连通、另一端与所述第二通道连通的第三通道;The static scroll includes a static disk body, the static disk body is provided with a first passage penetrating in the axial direction, a second passage extending radially from a side surface of the static disk body, and one end and the first a third passage communicating with the other end and communicating with the second passage;
    所述第三通道内设有活动阀片,所述活动阀片根据所述第一通道和所述第二通道之间的气压差控制所述第一通道和所述第二通道的连通或阻断。An active valve piece is disposed in the third passage, and the movable valve piece controls communication or resistance of the first passage and the second passage according to a difference in air pressure between the first passage and the second passage Broken.
  2. 如权利要求1所述的涡旋压缩机,其特征在于,所述静盘体远离所述压缩腔的端面凹设有连通所述第二通道的连接通道,所述涡旋压缩机还包括一罩盖,所述罩盖盖设于所述第一通道远离所述压缩腔的端口和所述连接通道远离所述第二通道的端口,且所述罩盖与所述静盘体远离压缩腔的端面围设形成密封腔,所述连接通道和所述密封腔共同构成所述第三通道,所述活动阀片安装于所述密封腔内,并根据所述第一通道和所述第二通道之间的气压差控制所述第一通道和所述第二通道的连通或阻断。The scroll compressor according to claim 1, wherein the end surface of the static disc body away from the compression chamber is recessed with a connecting passage communicating with the second passage, and the scroll compressor further includes a a cover, the cover is disposed at a port of the first passage away from the compression chamber and a port of the connecting passage away from the second passage, and the cover and the static disc body are away from the compression chamber The end face encircles to form a sealed cavity, the connecting passage and the sealing cavity together constitute the third passage, the movable valve piece is installed in the sealing cavity, and according to the first passage and the second The difference in air pressure between the channels controls the communication or blocking of the first channel and the second channel.
  3. 如权利要求2所述的涡旋压缩机,其特征在于,所述活动阀片包括与所述静盘体远离所述压缩腔的端面固定连接的固定端,以及延伸至所述连接通道远离所述第二通道的端口的自由端,所述自由端根据所述第一通道与所述第二通道之间的气压差打开/封堵所述连接通道远离所述第二通道的端口。A scroll compressor according to claim 2, wherein said movable valve piece includes a fixed end fixedly coupled to an end surface of said stationary disk body away from said compression chamber, and extending to said connecting passage away from said a free end of the port of the second channel, the free end opening/blocking the port of the connecting channel away from the second channel according to a difference in air pressure between the first channel and the second channel.
  4. 如权利要求3所述的涡旋压缩机,其特征在于,所述涡旋压缩机还包一挡板,所述挡板的一端与所述活动阀片的固定端固定连接,所述挡板的另一端位于所述活动阀片的自由端上方,以限制所述活动阀片的形变行程。A scroll compressor according to claim 3, wherein said scroll compressor further comprises a baffle, one end of said baffle being fixedly coupled to a fixed end of said movable valve plate, said baffle The other end is located above the free end of the movable valve plate to limit the deformation stroke of the movable valve plate.
  5. 如权利要求2所述的涡旋压缩机,其特征在于,所述罩盖的端面与所述静盘体远离所述压缩腔的端面之间设置有密封垫片。A scroll compressor according to claim 2, wherein a sealing gasket is provided between an end surface of said cover and an end surface of said stationary disk body away from said compression chamber.
  6. 如权利要求1-5中任一项所述的涡旋压缩机,其特征在于,所述静盘体远离所述压缩腔的端面凹设有连通所述第二通道的第一凹槽、以及连通所述第一凹槽和所述第一通道的第二凹槽;所述涡旋压缩机还包括一密封盖,所述密封盖盖合所述第一凹槽、第二凹槽以及所述第一通道远离所述压缩腔的端口,所述密封盖与所述第一凹槽和所述第二凹槽共同围成所述第三通道,所述活动阀片安装于所述第一凹槽中,并根据所述第一通道和所述第二通道之间的气压差控制所述第一通道和所述第二通道的连通或阻断。The scroll compressor according to any one of claims 1 to 5, wherein the end surface of the stationary disk body away from the compression chamber is recessed with a first groove communicating with the second passage, and a second groove connecting the first groove and the first passage; the scroll compressor further includes a sealing cover, the sealing cover covers the first groove, the second groove and the The first passage is away from the port of the compression chamber, the sealing cover and the first groove and the second groove together form the third passage, and the movable valve piece is mounted on the first In the groove, and controlling the communication or blocking of the first channel and the second channel according to a difference in air pressure between the first channel and the second channel.
  7. 如权利要求6所述的涡旋压缩机,其特征在于,所述第一凹槽邻近所述第二通道的内壁面设置有台阶部,所述台阶部用于限位所述活动阀片。 A scroll compressor according to claim 6, wherein said first groove is provided with a step portion adjacent to an inner wall surface of said second passage, said step portion for limiting said movable valve piece.
  8. 如权利要求6所述的涡旋压缩机,其特征在于,所述静盘体远离所述压缩腔的表面凹设有供所述密封盖安装的安装槽,所述密封盖安装于所述安装槽内。The scroll compressor according to claim 6, wherein a surface of the stationary disk body away from the compression chamber is recessed with a mounting groove for mounting the sealing cover, and the sealing cover is mounted to the mounting Inside the slot.
  9. 如权利要求2或6所述的涡旋压缩机,其特征在于,所述静盘体设置有多个所述第一通道,且多个所述第一通道均与所述第三通道连通设置。The scroll compressor according to claim 2 or 6, wherein the static disk body is provided with a plurality of the first passages, and a plurality of the first passages are connected to the third passage .
  10. 一种空调器,其特征在于,包括如权利要求1-9中任意一项所述的涡旋压缩机。 An air conditioner comprising the scroll compressor according to any one of claims 1-9.
PCT/CN2017/070854 2016-06-21 2017-01-11 Scroll compressor and air conditioner WO2017219660A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201620633908.0U CN205823630U (en) 2016-06-21 2016-06-21 Screw compressor and air-conditioner
CN201620633908.0 2016-06-21
CN201610466504.1A CN105952638A (en) 2016-06-21 2016-06-21 Scroll compressor and air-conditioner
CN201610466504.1 2016-06-21

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CN111173740A (en) * 2020-01-21 2020-05-19 西安理工大学 Scroll compressor with asymmetric molded lines

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