CN114962259A - Back pressure mechanism of air conditioner compressor of electric automobile - Google Patents

Back pressure mechanism of air conditioner compressor of electric automobile Download PDF

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Publication number
CN114962259A
CN114962259A CN202210571762.1A CN202210571762A CN114962259A CN 114962259 A CN114962259 A CN 114962259A CN 202210571762 A CN202210571762 A CN 202210571762A CN 114962259 A CN114962259 A CN 114962259A
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CN
China
Prior art keywords
movable
back pressure
crankshaft
bottom plate
vortex
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN202210571762.1A
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Chinese (zh)
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CN114962259B (en
Inventor
叶瑞桃
夏敏
赵军华
王晓飞
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Chongqing Pacific Precision Technology Co ltd
Jiangsu Pacific Precision Forging Co Ltd
Original Assignee
Chongqing Pacific Precision Technology Co ltd
Jiangsu Pacific Precision Forging Co Ltd
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Priority to CN202210571762.1A priority Critical patent/CN114962259B/en
Publication of CN114962259A publication Critical patent/CN114962259A/en
Application granted granted Critical
Publication of CN114962259B publication Critical patent/CN114962259B/en
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    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-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
    • F04C18/0207—Rotary-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 both members having co-operating elements in spiral form
    • F04C18/0215—Rotary-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 both members having co-operating elements in spiral form where only one member is moving
    • 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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-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
    • F04C18/0207—Rotary-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 both members having co-operating elements in spiral form
    • F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/005—Axial sealings for working fluid
    • 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
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • 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
    • F04C2240/00—Components
    • F04C2240/10—Stators
    • 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
    • F04C2240/00—Components
    • F04C2240/20—Rotors
    • 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
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings
    • 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
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/807—Balance weight, counterweight

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

The invention discloses a backpressure mechanism of an air-conditioning compressor of an electric automobile, which comprises an active scroll and a static scroll, wherein the active scroll comprises an active scroll line body and a first bottom plate arranged below the active scroll line body; the movable vortex disc sealing device has the beneficial effects that the gas pressure of the back pressure cavity can be automatically adjusted, and the gas pressure of the back pressure cavity can be ensured to apply corresponding axial pretightening force to the movable vortex disc under different working conditions to limit the axial separation of the movable vortex disc, so that the sealing effect between the working surfaces of the movable vortex disc and the fixed vortex disc is good.

Description

Back pressure mechanism of air conditioner compressor of electric automobile
Technical Field
The invention relates to the technical field of air conditioner compressors for electric vehicles, in particular to a backpressure mechanism of an air conditioner compressor for an electric vehicle.
Background
The electric scroll compressor mainly compresses refrigerant gas through a closed crescent working cavity formed by meshing a movable scroll and a fixed scroll, the fixed scroll is mounted on and supported by a rear cover, and the movable scroll can be subjected to reverse axial gas force exerted by compressed gas in the movement process to force the working surface of the movable scroll to be separated from the working surface of the fixed scroll, so that the refrigerant gas is axially leaked, and the refrigeration efficiency of the compressor is reduced; in the prior art, only the wear-resistant sheet is placed on the back of the movable scroll plate and a constant axial pretightening force is applied to limit the axial separation of the movable scroll plate, and actually, the axial gas force borne by the movable scroll plate is continuously changed under different working conditions in the working process of a compressor;
in view of the above, there is a need for an improved back pressure mechanism of an air conditioner compressor of an electric vehicle, which can meet the current needs of the back pressure mechanism.
Disclosure of Invention
Because present move vortex dish and static vortex dish when the cooperation is used, move the vortex dish and can receive reverse axial gas power at the in-process of motion for move vortex dish working face and static vortex dish working face and take place the separation, lead to refrigerant gas to appear the axial and reveal, reduced the refrigeration efficiency of compressor, consequently we have designed an electric automobile air conditioner compressor's backpressure mechanism on the basis of prior art defect, difficult emergence axial is revealed, the refrigeration efficiency of compressor is high, the enterprise of being convenient for uses.
The technical scheme of the invention is that the backpressure mechanism of the air-conditioning compressor of the electric automobile comprises a movable scroll and a fixed scroll, wherein the movable scroll comprises a movable scroll line body and a first bottom plate arranged below the movable scroll line body, the fixed scroll comprises a fixed scroll line body and a second bottom plate arranged below the fixed scroll line body, the end surface and the front surface of the movable scroll line body are respectively attached to the front surface of the second bottom plate of the fixed scroll and the end surface of the fixed scroll line body to form an effective compressed gas working cavity, a pressure guide hole is arranged on the movable scroll line body and connected with a pressure guide channel so as to conveniently guide high-pressure gas into a backpressure cavity on the back surface of the first bottom plate, a pressure relief hole is further formed in one side, close to the pressure guide hole, of the first bottom plate, and a backpressure mechanism is further arranged in the movable scroll and the fixed scroll.
The technical scheme is further supplemented, and the backpressure mechanism comprises a front cover arranged below the first bottom plate, a movable disc bearing arranged on the first bottom plate, a main bearing arranged on the front cover, a crankshaft arranged at the inner ring of the main bearing and a rear bearing arranged at the tail end of the crankshaft; the movable disc wear resistant sheet is placed on the end face of the front cover and closely attached to one side, away from the movable scroll line body, of the first bottom plate, a gap exists between the movable disc wear resistant sheet and the center area of the end face of the front cover, one side, away from the movable scroll line body, of the first bottom plate is provided with a center hole, the movable disc bearing is arranged in the center hole, and the front cover is provided with an inner hole for mounting a main bearing.
The technical scheme is further supplemented, a back pressure inlet is longitudinally arranged on one side, close to the movable scroll plate, of the crankshaft, and a back pressure outlet is transversely arranged below the crankshaft.
In addition to the technical scheme, a shaft seal is further arranged on the outer side of the crankshaft in the front cover.
The technical scheme is further supplemented, a shaft seal retaining ring is further arranged on the outer side of the crankshaft in the front cover, and the shaft seal retaining ring is arranged above the shaft seal.
In addition to the technical scheme, a pressure reducer is installed in a back pressure inlet channel of the crankshaft.
In addition to the technical scheme, the outer surface of the pressure reducer is provided with a threaded channel.
To the further supplement of this technical scheme, still be equipped with eccentric counter weight in the protecgulum, eccentric counter weight's upper end and movable disk bearing inner race are connected, eccentric counter weight installs on the bent axle up end and leaves the clearance between the two and supply in the back pressure chamber gas flows into bent axle back pressure inlet channel.
The back pressure cavity sealing device has the advantages that in the working process of the compressor, the back pressure cavity gas pressure can be automatically adjusted, and the back pressure cavity gas pressure can apply corresponding axial pretightening force to the movable scroll plate to limit axial separation of the movable scroll plate and the fixed scroll plate under different working conditions, so that the sealing effect between the working surfaces of the movable scroll plate and the fixed scroll plate is good, axial leakage is not easy to occur, and the refrigeration efficiency of the compressor cannot be reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the movable scroll of the present invention;
FIG. 3 is a rear view of the orbiting scroll of the present invention;
FIG. 4 is a schematic perspective view of a crankshaft of the present invention;
FIG. 5 is a schematic cross-sectional view of a crankshaft of the present invention;
FIG. 6 is a schematic structural view of the pressure reducer;
in the figure, 1, a movable scroll; 111. moving vortex type wire body; 112. a first base plate; 2. a fixed scroll; 3. a pressure guide hole; 4. a pressure relief vent; 5. a back pressure mechanism; 51. a front cover; 52. a movable disc bearing; 53. a main bearing; 54. a crankshaft; 541. a back pressure inlet; 542. a back pressure outlet; 55. a rear bearing; 56. a movable disc wear resistant sheet; 57. shaft sealing; 58. a shaft seal retainer ring; 59. a pressure reducer; 6. an eccentric weight; 7. a back pressure chamber.
Detailed Description
Because present move vortex dish and static vortex dish when the cooperation is used, move the vortex dish and can receive reverse axial gas power at the in-process of motion for move vortex dish working face and static vortex dish working face and take place the separation, lead to refrigerant gas to appear the axial and reveal, reduced the refrigeration efficiency of compressor, consequently we have designed an electric automobile air conditioner compressor's backpressure mechanism on the basis of prior art defect, difficult emergence axial is revealed, the refrigeration efficiency of compressor is high, the enterprise of being convenient for uses.
In order to make the technical solution more clear to those skilled in the art, the technical solution of the present invention will be described in detail below with reference to fig. 1 to 6:
a backpressure mechanism of an air conditioner compressor of an electric automobile comprises a movable vortex plate 1 and a fixed vortex plate 2, wherein the movable vortex plate 1 comprises a movable vortex line body 111 and a first bottom plate 112 arranged below the movable vortex line body 111, the fixed vortex plate 2 comprises a fixed vortex line body and a second bottom plate arranged below the fixed vortex line body, the end surface of the movable vortex line body 111 and the front surface of the first bottom plate 112 are respectively attached to the front surface of the second bottom plate of the fixed vortex plate 2 and the end surface of the fixed vortex line body to form an effective compressed gas working chamber, a pressure guide hole 3 is arranged on the movable vortex line body 111 and is connected with a pressure guide channel so as to conveniently guide high-pressure gas into a backpressure chamber 7 on the back surface of the first bottom plate 112, a pressure relief hole 4 is also arranged on one side, close to the pressure guide hole 3, of the first bottom plate 112 so as to prevent the gas pressure of the backpressure chamber 7 from being suddenly increased and unable to be reduced in time under extreme working conditions, avoiding the long-time harmful abrasion of the working surfaces of the movable and fixed scroll disks 2, wherein the diameter of the pressure guide hole 3 is larger than that of the pressure release hole 4; and a back pressure mechanism 5 is also arranged in the movable scroll 1 and the fixed scroll 2.
The structure of the back pressure mechanism 5 will be described in detail, and includes a front cover 51 disposed below the first base plate 112, a movable disc bearing 52 disposed on the first base plate 112, a main bearing 53 disposed on the front cover 51, a crankshaft 54 disposed in an inner ring of the main bearing 53, and a rear bearing 55 disposed at an end of the crankshaft 54; a movable disc wear resistant sheet 56 is further installed between the front cover 51 and the movable scroll 1, the movable disc wear resistant sheet 56 is placed on the end face of the front cover 51 and is tightly attached to one side, away from the movable scroll profile body 111, of the first bottom plate 112, and a gap is formed between the movable disc wear resistant sheet 56 and the central area of the end face of the front cover 51, so that the gas pressure of the backpressure cavity 7 can effectively act on the attachment face of the movable disc wear resistant sheet 56 and the back face of the first bottom plate 112 on the movable scroll 1; a central hole is formed in one side, away from the movable scroll-shaped line body 111, of the first bottom plate 112, the movable disc bearing 52 is arranged in the central hole, and an inner hole for mounting the main bearing 53 is formed in the front cover 51.
A back pressure inlet 541 is longitudinally arranged on one side of the crankshaft 54 close to the movable scroll 1, and a back pressure outlet 542 is transversely arranged below the crankshaft 54.
Wherein, a shaft seal 57 is also arranged on the outer side of the crankshaft 54 in the front cover 51; and a shaft seal retaining ring 58 is further arranged on the outer side of the crankshaft 54 in the front cover 51, and the shaft seal retaining ring 58 is arranged above the shaft seal 57 and can limit the axial movement of the shaft seal 57 to play a role in sealing the back pressure cavity 7.
In addition to the technical scheme, a pressure reducer 59 is installed in a back pressure inlet 541 channel of the crankshaft 54, a threaded channel is arranged on the outer surface of the pressure reducer 59, high-pressure gas in the back pressure cavity 7 is reduced into low-pressure gas through the threaded channel of the pressure reducer 59, the low-pressure gas flows out from a back pressure outlet 542 channel at the tail end of the crankshaft 54, and the gas pressure in the back pressure cavity 7 is synchronously reduced.
Preferably, an eccentric weight 6 is further arranged in the front cover 51, the upper end of the eccentric weight 6 is connected with the inner ring of the movable disc bearing 52, the eccentric weight 6 is mounted on the upper end face of the crankshaft 54, and a gap is reserved between the eccentric weight 6 and the upper end face of the crankshaft 54 to allow gas in the back pressure cavity 7 to flow into a back pressure inlet 541 channel of the crankshaft 54.
The following system illustrates the overall working principle of the present invention: in the working process of the compressor, under different working conditions, the axial gas force applied by the compressed gas to the movable scroll 1 in the movement process is constantly changed, when the gas pressure of the back pressure cavity 7 is not enough to keep the working surfaces of the movable scroll 2 and the fixed scroll 2 tightly attached, the high-pressure gas in the central working cavity is converged into the pressure introduction hole 3 through the pressure introduction channel and flows into the back pressure cavity 7, the pressure of the back pressure cavity 7 is continuously increased by the high-pressure gas from the pressure introduction hole 3, the working surfaces of the movable scroll 2 and the fixed scroll 2 are forced to be gradually attached, when the pressure of the back pressure cavity 7 is increased to a specific pressure, the pressure introduction channel is forced to be closed, and at the moment, the pressure of the back pressure cavity 7 is just in a critical balance state, namely, the pressures on two sides of the axial direction of the movable scroll 1 are balanced, so that the efficient and stable operation of the movable scroll 1 is ensured; when the gas pressure of the back pressure cavity 7 is enough to keep the working surfaces of the movable and fixed scroll discs 2 tightly attached, along with the reduction of the reverse axial gas force of the compression cavity, the gas pressure of the back pressure cavity 7 needs to be continuously reduced through the pressure reducer 59 to correspond to the reduction of the gas pressure, otherwise, the pre-tightening force of the working surfaces of the movable and fixed scroll discs 2 is increased, the operation power consumption is increased, the refrigeration efficiency of the compressor is reduced, in the process that the gas pressure of the back pressure cavity 7 is continuously reduced, when the working surfaces of the movable and fixed scroll discs 2 are separated, the pressure guide channel is opened at any time, and high-pressure gas reenters the back pressure cavity 7 through the pressure guide hole 3 and increases the gas pressure of the back pressure cavity 7, so that the new balance is achieved; when the gas pressure of the back pressure cavity 7 suddenly increases and can not be quickly reduced through the pressure reducer 59 under the extreme working condition, in order to prevent the working surface of the fixed scroll 2 from generating long-time harmful abrasion, the bottom plate surface of the movable scroll 1 in the secondary high-pressure gas area of the compression cavity is provided with a pressure relief hole 4, the diameter of the pressure relief hole is smaller than that of the pressure guiding hole 3, so that the gas pressure of the back pressure cavity 7 can be quickly released, and the stable operation of the movable scroll 1 can be ensured.
The technical solutions described above only represent the preferred technical solutions of the present invention, and some possible modifications made to some parts by those skilled in the art all represent the principles of the present invention, and fall within the protection scope of the present invention.

Claims (8)

1. The backpressure mechanism of the air-conditioning compressor of the electric automobile is characterized by comprising a movable vortex plate (1) and a fixed vortex plate (2), wherein the movable vortex plate (1) comprises a movable vortex line body (111) and a first bottom plate (112) arranged below the movable vortex line body (111), the fixed vortex plate (2) comprises a fixed vortex line body and a second bottom plate arranged below the fixed vortex line body, the end surface of the movable vortex line body (111) and the front surface of the first bottom plate (112) are respectively attached to the front surface of the second bottom plate of the fixed vortex plate (2) and the end surface of the fixed vortex line body to form an effective compressed gas working chamber, a pressure guide hole (3) is formed in the movable vortex line body (111) and connected with a pressure guide channel so as to conveniently guide high-pressure gas into a back pressure chamber (7) on the back surface of the first bottom plate (112), a pressure relief hole (4) is further formed in one side, close to the pressure guide hole (3), of the first bottom plate (112), and a back pressure mechanism (5) is also arranged in the movable scroll (1) and the fixed scroll (2).
2. The backpressure mechanism of the air conditioner compressor of the electric automobile according to claim 1, wherein the backpressure mechanism (5) comprises a front cover (51) arranged below the first bottom plate (112), a movable disc bearing (52) arranged on the first bottom plate (112), a main bearing (53) arranged on the front cover (51), a crankshaft (54) arranged at the inner ring of the main bearing (53), and a rear bearing (55) arranged at the tail end of the crankshaft (54); still install movable disk wear pad (56) between protecgulum (51) and the vortex dish (1) of moving, movable disk wear pad (56) are placed on protecgulum (51) terminal surface and are kept away from with first bottom plate (112) and move vortex type line body (111) one side and closely laminate, there is the clearance between movable disk wear pad (56) and protecgulum (51) terminal surface central area, it is equipped with the centre bore to keep away from moving vortex type line body (111) one side in first bottom plate (112), movable disk bearing (52) set up in the centre bore, be equipped with the hole on protecgulum (51) and be used for installing base bearing (53).
3. The back pressure mechanism of the air conditioner compressor of the electric automobile is characterized in that a back pressure inlet (541) is longitudinally arranged on one side of the crankshaft (54) close to the movable scroll (1), and a back pressure outlet (542) is transversely arranged below the crankshaft (54).
4. The back pressure mechanism of the air conditioner compressor of the electric automobile as claimed in claim 3, wherein a shaft seal (57) is further provided inside the front cover (51) and outside the crankshaft (54).
5. The back pressure mechanism of the air conditioner compressor of the electric automobile as claimed in claim 4, wherein a shaft seal retaining ring (58) is further disposed inside the front cover (51) and outside the crankshaft (54), and the shaft seal retaining ring (58) is disposed above the shaft seal (57).
6. The back pressure mechanism of the air conditioner compressor of the electric automobile as claimed in claim 5, wherein a pressure reducer (59) is installed in the back pressure inlet (541) channel of the crankshaft (54).
7. The back pressure mechanism of the air conditioner compressor of the electric automobile as claimed in claim 6, wherein the outer surface of the pressure reducer (59) is provided with a threaded passage.
8. The backpressure mechanism of the air-conditioning compressor of the electric automobile according to claim 7, characterized in that an eccentric weight (6) is further arranged in the front cover (51), the upper end of the eccentric weight (6) is connected with the inner ring of the movable disc bearing (52), the eccentric weight (6) is installed on the upper end face of the crankshaft (54) and a gap is reserved between the eccentric weight (6) and the crankshaft (54) for the gas in the backpressure cavity (7) to flow into the passage of the backpressure inlet (541) of the crankshaft (54).
CN202210571762.1A 2022-05-24 2022-05-24 Back pressure mechanism of electric automobile air conditioner compressor Active CN114962259B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210571762.1A CN114962259B (en) 2022-05-24 2022-05-24 Back pressure mechanism of electric automobile air conditioner compressor

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Application Number Priority Date Filing Date Title
CN202210571762.1A CN114962259B (en) 2022-05-24 2022-05-24 Back pressure mechanism of electric automobile air conditioner compressor

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CN114962259B CN114962259B (en) 2023-12-05

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Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011153526A (en) * 2010-01-26 2011-08-11 Panasonic Corp Hermetically sealed rotary compressor
CN203257676U (en) * 2013-04-22 2013-10-30 浙江博宇实业有限公司 Integrated electric scroll compressor assembly for new energy automobile
KR20140002939A (en) * 2012-06-28 2014-01-09 한라비스테온공조 주식회사 Electronic compressor
CN105201826A (en) * 2015-09-23 2015-12-30 广州广涡压缩机有限公司 Oil injection vortex air compressor of back pressure structure
WO2017124964A1 (en) * 2016-01-18 2017-07-27 广东美的暖通设备有限公司 Method for reducing back pressure fluctuation of scroll compressor, and scroll compressor
CN108533487A (en) * 2018-05-28 2018-09-14 安徽大富重工机械有限公司 Screw compressor, refrigeration equipment and automobile
CN109779902A (en) * 2019-03-26 2019-05-21 上海理工大学 Electric scroll compressor longitudinal balance structure
CN111878395A (en) * 2020-08-31 2020-11-03 广东美的环境科技有限公司 Scroll compressor having a plurality of scroll members
CN112032048A (en) * 2020-09-09 2020-12-04 上海海立新能源技术有限公司 Pressure guiding method of scroll machine
US20210017985A1 (en) * 2019-07-17 2021-01-21 Lg Electronics Inc Scroll compressor
CN213205965U (en) * 2020-06-10 2021-05-14 安徽省大富智能空调技术有限公司 Scroll compressor, refrigeration equipment and automobile
CN112833009A (en) * 2021-03-18 2021-05-25 珠海格力电器股份有限公司 Pump body structure, compressor and air conditioner
CN113323872A (en) * 2021-07-16 2021-08-31 珠海格力节能环保制冷技术研究中心有限公司 Pump body structure, scroll compressor and air conditioner
US20220025884A1 (en) * 2018-12-06 2022-01-27 Samsung Electronics Co., Ltd. High pressure scroll compressor

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011153526A (en) * 2010-01-26 2011-08-11 Panasonic Corp Hermetically sealed rotary compressor
KR20140002939A (en) * 2012-06-28 2014-01-09 한라비스테온공조 주식회사 Electronic compressor
CN203257676U (en) * 2013-04-22 2013-10-30 浙江博宇实业有限公司 Integrated electric scroll compressor assembly for new energy automobile
CN105201826A (en) * 2015-09-23 2015-12-30 广州广涡压缩机有限公司 Oil injection vortex air compressor of back pressure structure
WO2017124964A1 (en) * 2016-01-18 2017-07-27 广东美的暖通设备有限公司 Method for reducing back pressure fluctuation of scroll compressor, and scroll compressor
CN108533487A (en) * 2018-05-28 2018-09-14 安徽大富重工机械有限公司 Screw compressor, refrigeration equipment and automobile
US20220025884A1 (en) * 2018-12-06 2022-01-27 Samsung Electronics Co., Ltd. High pressure scroll compressor
CN109779902A (en) * 2019-03-26 2019-05-21 上海理工大学 Electric scroll compressor longitudinal balance structure
US20210017985A1 (en) * 2019-07-17 2021-01-21 Lg Electronics Inc Scroll compressor
CN213205965U (en) * 2020-06-10 2021-05-14 安徽省大富智能空调技术有限公司 Scroll compressor, refrigeration equipment and automobile
CN111878395A (en) * 2020-08-31 2020-11-03 广东美的环境科技有限公司 Scroll compressor having a plurality of scroll members
CN112032048A (en) * 2020-09-09 2020-12-04 上海海立新能源技术有限公司 Pressure guiding method of scroll machine
CN112833009A (en) * 2021-03-18 2021-05-25 珠海格力电器股份有限公司 Pump body structure, compressor and air conditioner
CN113323872A (en) * 2021-07-16 2021-08-31 珠海格力节能环保制冷技术研究中心有限公司 Pump body structure, scroll compressor and air conditioner

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